The longest staircase lock in Britain.

You'll need a microscope to see some of the minuscule masterpieces in this modest museum.

A small island abbey is the final resting place of many medieval Scottish monarchs, including the real Macbeth.

A tall karst islet popularized by 007.

The prototype for all Nazi concentration camps.

A chain of 16 wondrous lakes formed as a result of the gradual dissolution of soluble layers of bedrock.

Yugoslavia's biggest underground airport lies in ruins.

This ruined castle is said to be the legendary keep of a Viking princess.

A ferry has operated across the River Hamble for around 500 years, but its distinctive bubblegum pink is a more recent addition.

This stream-carved gorge has inspired poets, hidden smugglers, and trained soldiers, all without losing its beauty.

The sullen remains of vessels abandoned in the Port Adelaide River.

This colossal war machine is now a living museum dedicated to underwater warfare.

This striking observation tower shaped like a spinnaker sail is the newest icon in historic Portsmouth.

Giant relaxing Buddha in Malaysia.

Modest by day, illuminated majestically at sunset.

Giant eggs, walls of bread, and nightmare surreality mark the largest collection of works by Salvador Dalí.

The gorgeous entrances into the city's underbelly look more like grand halls than subway stops.

Macabre astrological automaton clock dating to the late 1400s.

The iconic boulevard is the perfect place to catch sight of a bicycling skeleton, a levitating Satan, or a chef with his head stuck in a pizza.

Gaudí's famously flamboyant architectural style is on full display in this sprawling park and garden.

Construction of Barcelona’s iconic (but controversial) church was finally completed in 2026—a century after the death of its architect.

A 1970s resort city now stands abandoned, caught in the middle of a divided island.

This no man's land slicing through the island is strewn with abandoned relics of another time.

Museum preserving torture methods from the past.