This secluded walkway overlooks a magnificently wild London green space.

A surreal, Gaudi-inspired play space near an Anaheim community center.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

A historic hotel that made a cameo in Hitchcock's classic film has no intention of letting guests forget its fame.

A disused quarry turned lake in the middle of a residential district.

The magical, mossy forest that inspired Princess Mononoke.

The largest library in Latin America owes its existence to an Old World earthquake and a Napoleonic invasion.

This massive Brazilian church is built like an angular, technicolor pyramid left by Mayans from the future.

This stunning Brazilian library contains the largest collection of Portuguese texts outside of Portugal itself.

A magnificent, reportedly haunted mansion built for a composer by Spiritualists.

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

These unusual paintings give thanks to the saints and deities who granted people favors and miracles.

This neon installation is a tribute to a Mexica god, who gave his skin to humanity.

This piece of a Renaissance-era Spanish castle remained lost for decades.

Its incredible collections are dedicated to preserving Mexico's film history.

This "City of Books" holds a museum, library, and the complete personal book collections of five of Mexico's greatest thinkers.

These haunting ruins of a 700-year-old Prehispanic city have witnessed centuries of wars and massacres.

Explore the atmospheric ruins of an abandoned convent in the dense forests of Mexico's first national park.

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

France's most famous cemetery, with some of its most curious tombs.

A kaleidoscopic warehouse-maze of handmade neon signs.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

During prohibition, corrupt city officials ran drinking dens under the streets of Downtown Los Angeles.

A beautiful and abandoned New York subway station from 1904, complete with chandelier.