The castle still holds traces of the abandoned Roman fort it was built atop.

After years of slow decline, a derelict Gothic castle is now being restored to life.

High Victorian fantasy created a fairytale castle out of a ruined fortress in Wales.

A subterranean playground in an abandoned slate mine.

The largest bottled beer collection in the world holds over 22,000 unique beer bottles.

The old observatory in Copenhagen has a spiral corridor used as a racetrack.

Danish tourist destination well known for open stalls where vendors sell marijuana on the street.

Copenhagen's celebrated theme park and gardens.

Pre-Nazi swastikas adorn the sculpted pachyderms flanking this brewhouse portal.

The de facto symbol of Copenhagen is this bronze fairytale which cannot seem to keep its head for very long.

A striking public sculpture representing the period of martial law in Communist Poland.

The silly symbol for an underground protest group is now scattered around the city.

St. Mary's features one of the most spectacularly decorated cathedral interiors in all of Europe.

Real bones which are said to have belonged to a Polish dragon.

The world's longest outdoor covered escalator system transports commuters through Hong Kong's hilly terrain.

Teeming with illegal goods and services, this towering maze of vice is also a popular tourist accommodation.

One of the few surviving street funiculars in the world.

The world's largest prehistoric copper mine had 30,000 animal bones scattered throughout the maze of passageways.

A tiny village in Wales claims the name of a noble medieval hound slain for a crime he didn't commit.

Legends say that this small island was the final resting place of the Welsh saint of lovers.

A former fisherman's hut deemed too small for habitation is now a delightful tourist draw.

The highest peak in Wales is said to be the final resting place of a giant killed by King Arthur.

The stately remains of Llywelyn the Great's mighty fortress.

A miniature Italianate fantasy village on the coast of Wales and the set of ITC classic "The Prisoner."