66,000 pieces of art, donated by one of the world's richest men.

Gilded heaven for philatelists and architecture freaks, still in full working order despite sitting atop tremulous ground.

Underneath the historic center of Mexico City, the remains of a temple dedicated to the Aztec god of the wind.

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

The only castle in North America to ever house European sovereigns.

An airy Art Deco space devoted to the weird and wonderful folk art traditions of Mexico.

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

Many people don't realize there’s a lot going on in—and below—the world’s tallest triumphal arch.