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

The labyrinthine home of the National Archives of Estonia is an experimental blend of architecture, art, and history.

A trio of giant wooden megaphones turn up nature's volume in this Estonian forest.

The remains of a grand castle that may have inspired Bram Stoker's Dracula.

Built during the Scottish boom in the oil industry, the village was never inhabited.

Cascading waterfalls mark the gateway to the ancient burial place of Clan Macnab.

This wooden recreation of a 9th century lake village looks as though it was built yesterday (which it relatively was).

The world's first invisible city square is an homage to a man who pushed the boundaries of art.

The abandoned transportation hub hides within the Glasgow attraction it once served.

Nestled amid the peaks and lochs of the Scottish Highlands, this inn and pub has played host to outlaws and ghosts.

A pub that is literally in the middle of nowhere, but continues to do business.

These fantastically named natural pools look like something out of a Scottish myth.

This astonishingly geometric cave has inspired everyone from Jules Verne to Pink Floyd.

The most iconic structure in Scotland has been home to bishops, colonels, and Sean Connery characters.

Unusually, this ancient Iron Age broch has never been excavated.

An 18th-century viewpoint across the surrounding highlands.

A dramatic sculpture high up in Yorkshire with vistas on an industrial scale.

A giant wooden soda bottle pays homage to a distinctly British drink on the very spot where it was invented.

A miniature village mimics the surrounding buildings so well it includes itself.

Putting the "mod" in "modular" since 2000.

Constructed from recycled wrought iron railroad tracks, it's been described as the most beautiful seaside pier in England.

This historic franken-chapel is the oldest wooden church in the world, at least part of it.

This landmark Victorian folly rewards visitors with spectacular views over the Peak District.

This bridge is the first to be made entirely from iron, but designed like it was still made of wood.