The heroic tale of a remarkable pup who refused to leave her master's side, no matter what.

This 15th-century church was once described as the ugliest in England.

An attempted suicide made this cliff famous.

Where a plague-quarantined village left vinegar-soaked coins for supplies

The tallest freestanding structure in the United Kingdom.

These crude contraptions were used to aid in the mining of lead, silver and gold.

Housed in a historic 1840 home, this museum provides a window into the lives of everyday, 18th- and 19th-century Bulgarians.

This fifth-century church is one of the oldest Christian sites in the Balkans.

Step inside this medieval Orthodox gem and travel back to the 16th century.

These once housed the families who decided in 1665 to quarantine themselves to save their neighbours.

This 8-foot Anglo-Saxon cross is a rare surviving example of Mercian craftsmanship.

A peaceful Elves-fairytale landscape hides an evil scar, a chasm so dark and daunting that for centuries it was believed to be the gateway to hell.

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

This tiny watering hole claims to have the smallest bar counter in Europe.

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

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

A subterranean playground in an abandoned slate mine.

For the deepest sleep of your life, head 1,375 feet underground in Wales.

The world’s largest street art museum.

This pirate-broadcasting-tower-turned-restaurant played a rebellious role in the history of Dutch television.

The world's first zoo for microbes collecting the horrible and wonderful things living on and around us.

It appears as if a man is standing behind this giant airport clock, painting the hands in real time.