Standing prominent above Old Istanbul and its waterfront, Topkapi Palace is an immense¹ structure with a long and regal history - from its role as the centre of the Ottoman Empire, to its current operation as a museum housing sacred Muslim relics.

Initially constructed in the mid-15th century and expanded in subsequent centuries by different rulers, the palace is centred on four principal courtyards which are divided by high walls intended to ensure the privacy of those inside. The courtyards are surrounded by hundreds of buildings, beyond which are gardens and wooded areas and walls separating it from the bustling city.

At the height of their power, the Ottoman Sultans based all their official, political and ceremonial activities at the Palace. They housed up to 4,000 people in the complex, which was a self-contained city with all necessary facilities such as mosques, schools, a hospital and even a mint. The palace is reached via a processional avenue and the huge Imperial Gate adjacent to the Hagia Sofia mosque.

The first courtyard is the southernmost and largest of the four, and served mainly as parkland for the general population of the Palace and as a functional area for facilities like the mint. It also houses the Hagia Irene Orthodox Church. The fountain here is believed to have been used by executioners to clean their hands and weapons after an execution.

The parade route through this area leads directly to the Salutation Gate, entrance to the second courtyard. Visitors had to dismount their horses here, as only Sultans were permitted to proceed while riding.

The second courtyard was where Sultans would receive most guests and hold public audiences. It contained more lavish parkland for senior members of the court, and was surrounded by important buildings such as the Imperial Council, a harem, dormitories for servants, and stables where royal carriages are still present.

The ten domed kitchen buildings are clearly visible with their chimneys standing proud above spaces where up to a thousand people would work to create up to 6,000 meals a day in specialised facilities such as the confectionery and beverage kitchens.

The Tower of Justice is the high point of the complex - intended to serve as a reminder for all who could see it of the power of the Sultan, who would use it as a place to oversee his city. Nearby is the Treasury which housed most public administrative functions of the city.

The Gate of Felicity leads to the lush third courtyard which was the private quarters of the Sultan - a place where nobody could enter without his express permission. Private audiences (such as with visiting ambassadors) took place in the throne room just inside the gate. Personal guards and staff of the Sultans lived in this area. The Conquerors Pavilion and Imperial Treasury mostly housed art, money and other valued possessions. The Mosque of the Agas is the largest mosque in the Palace.

The Privy Chamber was constructed as offices, but now houses several items considered to be the most sacred Muslim relics - a cloak and weapons which belonged to the Prophet Muhammed, along with one of his teeth and a hair from his beard. These items form a destination of pilgrimage for many people.

The third courtyard also leads to the harem which had more than 400 rooms to house the sultan’s families in addition to their wives and concubines.

The fourth courtyard was strictly a private refuge for Sultans and their families, along with principal staff such as the Chief Physician. It includes sections specifically for rituals such as evening meals during Ramadan, and circumcision.

By the late 17th century, the Sultans had mostly relocated to more modern palaces elsewhere in the city. Sections of the Topkapi were lost to redevelopment, particularly along the waterfront where a railway was built in the 19th century. When the Ottoman Empire ended early in the 20th century, the Turkish government ordered its conversion into a museum.

While only a modest selection of the hundreds of rooms are open to the public, the architecture is splendid and there is a rich collection of Ottoman treasures, manuscripts and other objects in addition to the Muslim relics mentioned above.

A full in-depth description of Topkapi Palace can be found at Wikipedia. It can be helpful to compare the satellite images to the maps of the Palace, and the Harem. Finally, virtual tours at 360tr (tour one, tour two) give an excellent sense of the grandeur of the Palace.

Thanks to Ray hollis and Sench.

After the Pyramids of Giza, Egypt’s next most visited historical site is the Karnak temple complex just outside Luxor.

Karnak was constructed over a period of 1300 years by approximately 30 different pharaohs, and eventually grew to become a collection of 25 temples. Known in ancient times as Ipet-isut, ‘The most select of places’, it is the largest ancient religious site in the world.

At the south west of the complex is the Precinct of Mut, an enclosed area which is not open to tourists, as it’s currently being restored. It contains the temples of Ramesses III, Khonspekhrod, and of course Mut herself, as well as a large crescent-shaped lake.

Leading north east from the Precinct of Mut is a 400m long avenue of ram-headed sphinxes, which leads directly to the Precinct of Amun-Re.

At 250,000 sq m, the Precinct of Amun-Re is by far the largest area at Karnak, and is the only area that is open to the general public. Amun-Re is dedicated to the Egyptian God Amun, who was the focus of the most complex theology in Ancient Egypt, and the huge scale of the complex here stands as testament to that.

The Ninth Pylon, and The Sacred Lake of the Precinct of Amun-Re

The main attraction here however is actually the entrance to the Temple of Amun, The Great Hypostyle Hall. Fortunately for us, the roof no longer exists, which means we can see the famous 16 rows of 134 columns.

122 of the columns are 10 metres tall, and the remaining 12 are a gargantuan 21 metres tall, each with a diameter of over three meters! (Ground-level photo)

Inscriptions of the names of the Pharaohs, as well as reliefs depicting an expansive history, can also be found recorded on the walls of this ancient fossil of humankind’s past.

For more information, be sure to check out the Karnak page at Wikipedia, which has links to a wealth of information about each of the sights we’ve seen today.

This enormous hexagon, a mile and a half in diameter, looks like some kind of massive occult symbol etched in the scrub on the remote western coast of Australia, 700 miles north of Perth.

In fact, we’re looking at a communication station that transmits on the very low frequency (VLF) radio waveband to vessels of the US and Australian navies.

The facility, opened in 1967, consists of 13 guyed steel radio masts: one at the centre, and one at each corner of the inner and outer hexagons. (Street View gives a dizzying perspective from the base of one of them.) The central tower, known as Tower Zero, is 1,273 feet tall¹, meaning that for the first nine years of its life it was the tallest structure in the southern hemisphere.²

Initially, the station was operated solely by the US Navy, and the nearby town of Exmouth was built to service it and house servicemen’s families. For the first year of its operation, it was known as US Naval Communication Station North West Cape, after the promontory where it is located, but it was renamed in honour of the Australian prime minister who disappeared while swimming off a beach in Victoria³.

From 1975 the site was jointly run by the American and Australian navies, but in 1992 US personnel were withdrawn, and by 2002 the last Australian naval staff had left and operations were taken over by Boeing Australia.

Today, tourism seems to have a more important role in the life of Exmouth: visitors can tour public areas of the base, as well as exploring the gorges of the Cape Range National Park and snorkelling with manta rays and whale sharks in Ningaloo Marine Park.

The communication station still attracts controversy, however. Over the past few years, at least five aircraft have developed problems with their ADIRUs (instruments that supply the control systems with vital flight data) while in the general vicinity of the base. The most serious incident occurred last year, when more than 100 people on board Qantas flight 72 were injured when the plane went into a sharp dive.

Could the extremely powerful radio signals from the masts possibly cause interference? Some people think so, and the Australian Transport Safety Bureau has been looking into a possible link, but the official word is that transmissions from the base are “highly unlikely” to be responsible. That probably won’t keep the conspiracy theorists quiet, though…

Read more about the communications station at Wikipedia and the Shire of Exmouth site.

The spectacular Leptis Magna is an exceptionally well-preserved Roman city on the coast of Libya which has a history dating back over 3,000 years. Today the archaeological site is protected as a UNESCO World Heritage Site.

With a history dating back to 1100 BC, the city gained status as a leading part of the Roman Empire in AD 193 when Lucius Septimius Severus became the first African-born Emperor of Rome.

The baths at Leptis Magna

Although there are loads of ruins here, most of the prominent remains date from the first and second centuries, including the incredible theatre.

The theatre at Leptis Magna (ground-level photo)

Severus spent lavishly on new buildings for his home town as it developed into a major trading port, making sure he had an extensive market and a truly magnificent forum.

The market and forum at Leptis Magna

One of the major projects attempted during Severus’s reign was the redevelopment of the harbour, which was known for heavy silting. However, the changes just made the problem worse. Many of the quayside buildings are intact but rather annoyingly a strip of low-resolution imagery obscures the harbour.

However the good imagery returns further east, just in time for us to be able to see Leptis Magna’s wonderful amphitheatre - the location of amazing public spectacles, and the most prized symbol of Roman citizenship that a town could have.

The amphitheatre at Leptis Magna (ground-level photo)

The city eventually fell into decline in the fourth century when trade moved elsewhere, but thanks to Emperor Severus and his ebullient spending, there remains an absolute wealth of history for people to explore in his once splendid home town.

Wikipedia of course has lots of info, but I recommend that you visit the Temehu site for excellent pictures and background, with a more detailed history to be found at Livius.org. Also see an earlier post on Google Sightseeing about the city of Sabratha.

When the Romans invaded Britain in the 1st century AD, they never quite managed to conquer Caledonia - the area now known as Scotland.

We’ll never know whether the Roman army felt it was too much like hard work to defeat the fearsome northern tribes, or were simply under-attired for the fearsome Scottish weather; either way, in AD 122 the Roman Emperor Hadrian ordered the construction of a wall to defend his territory from the lands to the north.

Hadrian’s Wall stretched for 80 Roman miles (73.5 modern-day miles, or 117km), from the Solway Firth (where the wall is still visible) to the River Tyne (where the wall has vanished, but the fort of Segedunum, which marked its eastern end, has been excavated).

Despite being almost 2,000 years old (and having been heavily plundered by the locals for building materials after the Romans left), a surprising amount of the wall can still be seen today. One of the best preserved stretches is near the village of Gilsland. Here you can also see the foundations of the Roman bridge across the River Irthing - although since it was built the course of the river has shifted westwards.

There are an astonishing number of Roman sites in this area, as a look at the Ordnance Survey map shows. Among them are Birdoswald fort; the nicely preserved milecastle 48¹ (right next to the spot where the railway line slices through the wall); and a couple of Roman camps. The shadows on the aerial photography really show up the traces of old structures and ditches, even where there is little else left on the ground.

The wall was not a single structure: at various stages in its history it was extended, and separate banks and ditches added. Among the later additions was the Vallum, consisting of three earth banks separated by ditches, running parallel to the wall a few hundred metres to the south. The surviving stretches also show up well in aerial imagery; if you scroll northwards from this point you can see the wall itself.

In many places, the builders used the natural topography to help create a formidable barrier. One spectacular stretch of wall follows a steep rocky ridge, Highshield Crags.

The low angle of the sun creates some dramatic shadows here - and if you zoom right in, you can see the shadow of a sycamore tree in the hollow between two ridges. This location, known as Sycamore Gap, will be familiar to fans of the film Robin Hood: Prince of Thieves: it’s the spot where Kevin Costner rescued a small boy from the dastardly Guy of Gisbourne.²

Read more about Hadrian’s Wall at Wikipedia. The 84-mile-long Hadrian’s Wall Path National Trail follows the course of the wall, and its website has a great gallery of ground-level photos.