Climb inside an iron crystal magnified 165 billion times its normal size.

This futuristic airport terminal was abandoned for decades before reopening as a hotel—with a vintage plane of its own parked out back.

Elevated freight railway turned wildly successful urban park.

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

The Devil’s own choice when he needs a drink in Brussels.

This hidden Art Nouveau courtyard is an opulent feast for the eyes.

One of Kyoto's oldest food establishments has supplied soba noodles to temple priests and the Imperial Palace.

Amazing and mysterious Neolithic settlement on Scotland's Orkney Islands.

The community pools that the community refused to give up on.

The elaborate clockwork contraptions in this Scottish gallery create small worlds of whimsy and horror.

Semaphore saints, a golden dragon's head, and a stone carved with religious warnings all call this cathedral home.

Possibly the oldest living thing in Europe, more likely a pagan survivor.

The last inhabitants of one of the U.K.'s most remote islands were evacuated in 1930.

This short white tower is all that's left of Scotland's first permanently manned lighthouse.

An ancient Scottish rock formation said to be the gravesite of a giant remains ensconced in legend and intrigue.

Islanders once used this dramatic, otherworldly landscape to hide their cattle from Viking raiders.

Spend the night in this formerly abandoned traditional Scottish village.

A verdant 17th-century-style garden hidden along Edinburgh’s Royal Mile.

This Scottish castle has witnessed clan rivalries, Jacobite uprisings, whisky smuggling, and more.

This sublime architectural marvel is a rare example of an expressionist church.

A small island dotted with old, historic Finnish buildings.

A subterranean house of worship carved right out of the bedrock.

Stockholm's narrowest alley is barely over two feet wide.

The topiary maze at the Habsburg hunting lodge.