A six-ton wedding present for the King of the Scots.

This early version of the guillotine was used to execute the man responsible for its construction.

The final resting place of soldiers' loyal canine companions.

This otherwise ordinary close on the Royal Mile constituted the end of the world for Edinburgh’s poorest residents.

This allegedly haunted 16th-century tower house-turned-museum exhibits thousands of spectacular objects.

This series of Scottish caves has no clear purpose other than baffling historians.

Home to the most complete dodo remains known - one head, and one foot.

Ancient Egyptian wigs, South American feather headdresses, a bounty of anthropological artifacts in Oxford.

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

This tiny island is home to the world's largest colony of Northern gannets.

Britain’s longest ancient monument, this great 8th century earthwork was built to mark the boundary between what would become England and Wales.

These unique stepping stones hug a river's edge to take hikers on a journey through a limestone gorge.

Huge winged monument in the United Kingdom.

Unusual British home built to disguise a water tower.

The rotting skeleton of a shoreside fun fair that was destroyed by fire and storms still haunts the Brighton ocean view.

This beautiful deer park was built so King Charles I and his court could go hunting while escaping a deadly plague outbreak.

Touching this 18th-century Scottish philosopher’s toe allegedly conjures good fortune.

This alley off Edinburgh's Royal Mile contains remnants of the city's seedier history.

Decrepit Victorian public lift is a white-knuckle ride.

Semi-precious Blue John stones have been mined in this cavern system for centuries.

Perhaps the only prehistoric monument with its very own public bus stop.

A magnificent Victorian garden that brings the charm and style of old-time aristocracy to the 21st century public.

Local legend says Isaac Newton built this footbridge without any screws, bolts, or nails.

An architectural oddity hides in plain sight on this iconic London bridge.