This seaworthy collection was sparked by one man's passion for sailing.

The corpse bride of Portugal.

A sixth-century Byzantine cistern hidden below a modern carpet store.

This hidden gem is bathed in beautiful natural light.

This ancient subterranean megalopolis is known for the hot oil traps that were installed above each of its entrances.

This museum was invented in a novel before being made real by the author.

This deserted palace is one of the finest examples of Indo-Islamic architecture in India.

This historic pub has maintained much of its 1906 decor, including a small sequestered room for women, where orders were slipped through a tiny window.

This 17th-century structure is a beautiful testimony to traditional Persian architecture

A line of disused military bunkers built to defend against Nazi invasion lies hidden on the outskirts of the city.

This former mining hub holds a surprising abundance of undisturbed relics from the Old West.

The building is a gigantic piece of art inspired by the shape of a desert rose.

This whimsical garbage disposal facility receives around 12,000 accidental tourists each year.

Wander among the ghostly ruins of an island where civilization flourished for thousands of years.

This oddly beautiful water cistern is a techno-temple to the wet stuff and a multimedia masterpiece.

The 3,600-year-old archeological sensation is considered to be the oldest representation of the cosmos.

Found down a long dirt road, a sacred Mexican cenote and 18th-century hacienda remain hidden.

This abandoned viewing platform has become a monument to unnecessary government spending.

Fast food feels like fine dining at this award-winning modern Georgian building.

A Trabant car, a kangaroo statue, and a plethora of plants take over this abandoned-factory-turned-bar.

When a supermarket opened up shop within a medieval building it became protected by UNESCO on a technicality.

An abandoned desert hamlet swallowed up by sand.

A tiny park in the middle of some big power politics.

This vintage gem is one of the oldest surviving purpose-built movie palaces in Scotland.