Striking ruins of a mansion that stood center stage in one of modern Brazil's most puzzling crimes.

Wars fought and wars won are remembered by these abandoned bunker ruins.

Harlem park dedicated to compulsive hoarders killed by their own junk.

Home of the ruins of a British slave castle.

An awe-inspiring mosque in Morocco with one of the tallest minarets in the world.

Shocking dioramas of human torture, meant to promote human rights awareness.

This psychedelic tourist trap is a leisurely descent into madness.

Dr. Strangelove-esque tours reveal the inside a bunker once reserved for Stalin himself.

The only surviving prototype for Buckminster Fuller's house of the future.

This medieval castle overlooking the Elzbach river looks just like it did hundreds of years ago.

Structure built from the skulls of vanquished foes.

This locally-famous crevasse in New York State is icy all year round.

The gutted remains of this Estonian mansion are a monument to a tragic love.

Deep in the Thar desert, a temple crawling with thousands of holy rats.

Taiwan's only erotically-themed restaurant brings the comedy back to sex and dinner.

12,000 sq. ft. museum tracing erotic art from antiquity to modern times.

A forest of phallic offerings found in a quiet corner of a hotel car park.

A semi-scholarly approach to sex.

A darkly erotic open-air statuary in Catalonia.

An unusual stroll through gentlemen's erotica demonstrates that pornography is timeless.

The Vatican's secret porn-festooned bathroom was painted in erotic murals by one of the greatest artists of the Renaissance.

Giant marble phalluses on the sacred island of antiquity.

Where the lovelorn find a home for their sentimental keepsakes.

A mechanized clock where a man fights off a dragon, crab, and rooster.