This 17th-century street hidden beneath Edinburgh was once a breeding ground for the black death.

Things aren't quite what they seem at this mind-bending museum.

Travelers who fall victim to this mermaid's charms are destined to stay in Užupis forever.

This micro-nation may be some sort of prank, but its constitution sure seems official.

Plaques celebrating Lithuanian writers freckle a wall of this picture-perfect path.

An abandoned masterpiece of Soviet Brutalist architecture.

The largest coin pyramid in the world is a carefully balanced stack of over 1,000,000 pieces.

A former Latvian headquarters of the brutal KGB secret police is now open as a grim reminder of their atrocities.

Flamboyant architecture from the turn of 20th century.

This controversial statue once honoured a Russian Field Marshall, before ultimately being dismantled in a push to remove symbols of Russian influence.

This celebration of Latvia’s freedom and independence avoided demolition over half a century of Soviet occupation.

The reconstruction of this prominent building fulfilled a long-written command.

3,000 market stands in five former Zeppelin hangars.

Latvia's symbolic mountain-shaped national library is home to millions of cultural tomes.

An empty relic of the Moscow Olympics crumbles away in Estonia's capital.

A former imperial sea-fortress and Soviet prison.

Disused seaplane hangar gets a second life as the jaw-dropping home of Estonia's museum of maritime history.

"There's nothing there," and other lies the KGB told us.

A rocky sea serpent hides caves, blowholes, and a spectacular natural bridge.

With lush plants and flowers, huge trees, ponds, and hidden monuments, this place feels a bit like discovering Narnia.

This picturesque horseshoe weir was first built in the 1600s to prevent flooding in the town of Bath.

Don't be fooled by this fake medieval facade even if it is almost 300 years old.

This ancient stone bridge dates back to the early Middle Ages.

A historic holy well hidden near a charming English park.