Aerostat balloons are all along the southern borders of the US. The one shown here is at Fort Huachuca located near Sierra Vista, Arizona. The “Tethered Aerostat Radar System” is a balloon-borne radar primarily used to provide radar data to US federal agencies involved in the “war on drugs”. Before these balloons came in the military’s radar systems were aimed at detecting high altitude fast moving objects (bombers). Small, slow moving aircraft flying low could easily slip into the US, running drugs and the like.

Thanks: Andrew & Brad Mohr

Tempe Butte is more commonly known as “A Mountain” – for obvious reasons. Each year in the run up to the Arizona State University vs. University of Arizona football game the ASU students take shifts to guard the steel and concrete ‘A’ from being painted a different colour by the rival team.

Just to the east is Sun Devil Stadium, home of Superbowl XXX. Apparently the parking lot is full not because of a game, but because students can park there cheap.

A giant sign just west of Usery Pass, Arizona pointing the way to Phoenix. Neat

Thanks: Richard Kaszeta

Big Surf water park is in the Phoenix metro area of Arizona and as you can see there’s a giant old school Pepsi logo in the pool.

Thanks: Rich Kaszeta

Loads of submissions for this one, and man it is really, really big. Check out how far zoomed out we are! Also of note are the road around the rim, the visitors centre, and what appears to be a footbridge crossing the river.

Thanks to Shital Shah, Jon, Syd, djojo and many more!