El Caracol

Whenever full of crowd, wake up early in the morning and you have your best time.

Great tour. Just be prepared to be hounded by the vendors, they are everywhere.

The coolest part of the ruins. Had a great guide who made it outstanding

A magical, whimsical sight. It seems ethereal but welcoming, and it radiates absolute comfort and serenity. Easily one of the highlights of my trip to Mexico.

The El Caracol or Observatory is the ruin of a building south of the Great Pyramid. These guys who built this piece knew exactly what they were doing. It is constructed at the same time that people in Europe still believed that the earth was flat as a pancake. The construction is aimed at 27.5 degrees north of west which is not in line with the other buildings on the site but an almost perfect direction for Venus northernmost position in the sky. In addition, a diagonal formed by the northeast and southwest corners of the building is in line with both sunrise at summer solstice and sunset at winter solstice.