An artsy hidden staircase leads to breathtaking views of San Francisco.

This stunning and ethereal mural symbolizes the beauty, unity, and diversity of humankind.

This industrial Art Nouveau gem is a historic hotspot for Mexican counterculture.

A grand entrance to one of the world's smallest Chinatowns.

This colossal ancient sculpture of the monstrous Aztec rain god has a literally stormy history.

The unique collection often goes unnoticed by visitors focused only on the archaeological objects.

The collection of intricate sculptures includes one carved from a mammoth's tusk

It's believed this golden brick is part of the legendary lost Aztec treasure.

The turquoise-studded skull of a long-dead Aztec man sits within Mexico City’s Museum of Anthropology.

This colossal ancient jaguar sculpture was used as a vessel for the hearts torn from sacrificial victims.

Once home to an aristocratic family and a workers' organization, this intricately tiled building now houses a chain restaurant.

The most complete statue of this Aztec god sits a top a throne carved with images of hallucinogenic plants.

The striking jade death mask of an ancient Maya king is displayed in a replica tomb in Mexico City.

This ancient jade mask depicting the Zapotec bat god was found in the ruins of the pyramids of Monte Alban.

This strange sculpture of a menacing skull surrounded by sun rays was discovered at the foot of the Pyramid of the Sun.

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

You can release a young butterfly at this beautiful indoor garden.

This old-school café is famous for serving coffee, chilaquiles, and the Cuban Revolution.

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

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

A hidden room within the church displays an amazing collection of old choir books.

Romania's triumphal arch looks out over Bucharest.

The bust of Romania’s most notorious ruler, Vlad Dracula aka "Vlad the Impaler," keeps watch over the ruins of his medieval court.

This once-derelict building is now one of the most beautiful bookstores in the world.