The burial place of some of Mexico's most prominent residents is full of macabre stories and hidden masonic symbols.

A disquieting Aztec sculpture displays hundreds of stone skulls representing the victims of human sacrifice.

Psychedelic murals coat the inside of a nondescript research library.

The Mexican painter Diego Rivera created this unusual museum to display his collection of pre-Hispanic artifacts.

The remains of an Aztec school and various intriguing artifacts lie below a modern cultural center.

Frida Kahlo's childhood home, now a museum of her life and works.