A crumbling cliffside ruin hidden in the woods.

Oldest Museum of the Netherlands is a true cabinet of curiosities.

A Dutch passageway's artistic, aquatic-themed makeover pays tribute to the capital city's famed waterways.

This city square is home to Amsterdam's oldest church and a statue honoring Dutch sex workers.

Established in 1638 to battle the Black Death, Hortus Botanicus Amsterdam is a treasure trove of rare flora.

The world's first zoo for microbes collecting the horrible and wonderful things living on and around us.

An Amsterdam street lined with antique shops each one dedicated to a different obscure collection.

Thirty creepy ghosts now inhabit this decaying 14th-century church.

This historic black and white monastery is one of Bulgaria's architectural jewels.

This "floating railway" is one of the world's oldest monorail systems.

This odd Chilean waterfall-cano hotel must be entered via a rope bridge.

An earthwork sculpture built by Robert Smithson in the Great Salt Lake only reemerges during drought.

A white Buddhist temple with a golden restroom.

The sign at the garden gate reads: "These Plants Can Kill."

This French ghost town from World War II has been left as a memorial to German atrocities during World War II.

The atmospheric road was never meant to be so creepy.

The oldest hotel in the world has been operated by the same family for over 1,300 years, even catering to samurai.

This woodland architectural installation acts as a camera obscura for the heavens.

This Japanese-inspired labyrinth of hot springs is hidden in a Chilean forest.

A beautiful, dense forest in the shadow of Mount Fuji, with a tragic reputation.

A 200-year-old bar in the historic French Quarter refuses to give up its place in history, nor its role in securing ours.

Wondrous sandstone hoodoos where Native Americans collected clay for pottery, 9,000 years ago.

A Japanese corporation has turned this small island town into living modern art gallery.

This massive stained-glass masterpiece is thought to be the largest Tiffany dome in existence.