Monday, 27th June 2005 by

This is the ancient city of Teotihuacán, Mexico. Construction of the city began around 300 BC, with the Pyramid of the Sun (shown in our thumbnail) finished by 150 BC. The Pyramid of the sun sits in front of the Avenue of the Dead, and at the North end of that you can see the Pyramid of the Moon. The enormous cultural influence of the city reached its peak around 150-450 AD, when its population is believed to have been over 150,000. Pretty big for nearly 2,000 years ago!

As usual there's more great info at Wikipedia, and this site has a good map of the city and lots more information too.

Teotihuacan Pyramid

Thanks to Sven, R.Dubber, PikaPikaChick, Eduardo Cardenas Trejo, jupap7, Scott Baptista & Ericson Canavan, Jim Morton, DarrenW, Hermann Withalm, Dennis, William Melody and finally Rednapx.