|View from the Pyramid of the Moon down the Avenue of the Dead|
Between around 150-650 AD it was the largest city in the Americas, before being destroyed, possibly by its own people.
|Pyramid of the Sun|
Anyway, we had a good time walking around the massive site, dominated by two huge pyramids: the Pyramid of the Sun (which you can climb to the top) and the Pyramid of the Moon (which you can climb halfway up), plus the more intimate surroundings of the Temple of Quetzacoatl and the Palace of Quetzalpapolotl.
Plenty more temples to see in Mexico, but this was a good start.