An engineering error ensured this cavernous 350-foot-long subterranean thoroughfare was never used as intended.

This unchanged Victorian park is rumored to have been the inspiration behind Peter Pan's Neverland.

A spooky juxtaposition of caves and graves gives this legend-filled cemetery a particularly haunting vibe.

The oldest inn in England served brew to the crusaders.

The fake World Cup prize was secretly created after the first one was stolen in 1966.

The small bright red pillar survived the 1996 Manchester bombing virtually unscathed.

Manchester salvaged this sculpture of the adopted Mancunian when it was no longer wanted in Ukraine.

Be on the lookout for the symbolic insect all over the city.

A 19th-century time capsule of travel, fiction, and historic texts still available to the public.

A hands-off space for graffiti artists to hone and display their skills.

Thousands of coffin-like pillars make up this controversial Holocaust memorial.

A slice of central Asia in the middle of Berlin.

The most visited, and possibly most controversial, museum in Germany.

Overlooked by many, the two famous Scottish warriors guard the main gate of Edinburgh Castle.

The taxidermy remains of the first mammal ever cloned from an adult cell are on display in Edinburgh.

There are plenty of wonderful panoramic vistas in Edinburgh, but not many are hidden smack in the middle of the Old Town.

The final resting place of soldiers' loyal canine companions.

A sweet symbol marks the place where torturous executions were once carried out.

A 18th century graveyard and its astonishing cortege of macabre iconography.

360° views of the city plus five floors of optical illusions and hands-on science.

This stately monument has been wearing a traffic cone hat for decades much to the delight of the locals.

Silent memorial, using bone conduction to take people back to the Dresden Bombing of 1945.

When you're a great Russian Tsar, even your vomit gets a statue.

A little sculpture with a large wardrobe.