Tikal

I bounce around the world a lot, and I recently visited the Maya ruins in Tikal, Guatemala. This was before the "end of the world" in 2012, but the local tour operators were already laughing about the plans the tourists had made at various sites to visit just in case it proved to be true. The photos below are of the main temple at the site. I wish I could show the scale of these wonders, which are huge. No one knows exactly why the site was abandoned, though they do know that there was no natural flowing water in the area-- the Maya had to collect water in giant cisterns during the rainy season.

 Carving inside one of the side buildings depicting one of the gods.

Main temple with living areas on the far side. This temple was not hollow.