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A Nazi concentration camp and Anne Frank's place of death.

A meteorite-bounded town in Bavaria.

It's good luck to be mocked by this monkey.

This Nazi-built amphitheater was constructed on a sacred mountain site used by various German cults.

An intricately decorated tiny place of worship.

A remarkable feat of Victorian engineering across the Firth of Forth.

This iconic high-rise residential block was one of the last to be built in the Brutalist style.

Once designed as the entrance to Buckingham Palace, this structure was later relocated and stands as a victory arch.

A unique tribute to the millions of animals who served and died for the British military.

A museum wholly devoted to juvenescence.

This skewed English house has looked like it's going to fall over for centuries.

A set of medieval stained-glass windows tell the gruesome story of a Viking siege.

One of the few standing Roman lighthouses and a labyrinth of tunnels are a couple of the secrets at this historic castle.

Ramsgate’s Royal Harbour has the unique status of being the only Royal Harbour in the United Kingdom.

This ancient Egyptian obelisk still bears the wounds of World War I.

An unusual round church in London with a Templar past.

Famously misunderstood wonder of the ancient world

The first archaeological site discovered by aerial photography.

Qatar's oldest market can trace its origins back more than a century.

The world's smallest commercial theater is set up in what was once a urinal for Victorian men.

Hidden on a cobblestone street in Glasgow, a Czech Cajovna-inspired teahouse serves as a hangout for Bohemians.

This museum offers a glimpse into early 20th-century Glasgow life.

The Guinness Record holder as the "tallest cinema in the world" is a building with screens in almost every one of its 12 floors