Another super-cool bridge shadow here, belonging to the Hernando Desoto Bridge. Built in 1972 it carries the I-40 across the Mississippi River in Memphis (it's actually right next to the previously posted Memphis Pyramid). Memphis has a total of four…

The Louisiana Superdome is the home of the New Orleans Saints, and with a dome diameter of 680 feet (210 meters), it is the largest domed structure in the world. Thanks to Andrea and Jeff Fuchs.

The 308 by 2,400 foot Olivenhain Dam appears to be nearing completion in this photo, although it's still under construction (there's a yellow crane at the centre). As part of San Diego County Water Authority's US$827 million Emergency Storage Project,…

Thanks to everyone who commented on the original UFO find, although we're still not sure what they are, there's been some interesting developments. Ian Pottinger and jher were the first to find that there are in fact eight of these…

This 15,000 sq. ft. island is the floating green of hole 14 at the Coeur d'Alene Resort's golf course in Idaho. The island is automatically moved daily so the distance to the pin varies between 100-175 yards (it's always a…

The Inco Superstack is the tallest chimney in the Western hemisphere. Wikipedia says: The Superstack sits atop the largest nickel smelting operation in the world at Inco's Copper Cliff processing facility in the city of Greater Sudbury. It was constructed…