A poetic monument to the Scottish Parliament.

This charming, hidden guild museum holds some 700 years of crossbow history.

While most bridges allow roads to pass over water, this one allows water to pass over a road.

The remnants of this unusual bridge await an uncertain fate.

Marvel at this massive waterspout fueled by the incoming tide.

The artwork mysteriously appeared within an Edinburgh cemetery.

A little piece of Oxford's overlooked industrial heritage.

Its collection offers a glimpse into the Russian Old Believers' centuries-old way of life.

Looking strangely like Rome's Colosseum, this unfinished tower has dominated the skyline for over 100 years.

This impressive former palace contains a hidden gem for fans of modern sculpture.

A hidden path at the National Theatre lets you look behind the scenes of the latest productions.

The last known resting place of the king who united England.

This magnificent Art Deco church is a reflection of Lithuania’s turbulent history.

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

Where a Japanese government official issued transit visas to Jews fleeing from Nazi-occupied Poland.

This unique eatery offers a taste of Estonia's "Onion Route."

Troublesome students were detained in this tiny graffiti-covered university jail.

For the last century, this international border within a small town has appeared and disappeared various times.

The first firefighters museum in southern Spain is ironically located in an old textile mill that burned down in 1985.

A magnificent tomb that was the final resting place of the Dukes of Hamilton.

A series of concentric circles represented a bold new experiment in socialist urban planning, and it notoriously difficult to get around.

This London marker celebrates the spot where the world-famous English band was founded.

This volcanic plug boasts the longest recorded history of any Scottish stronghold.

Hidden deep within a Filipino jungle is an incredible waterfall that plunges into a dazzling blue-green pool.