Opulence and fantasy collide in this royal chair which is supposedly made with unicorn horns.

An ancient hotspot for spotting schools of fish.

Sometimes an island, sometimes a rocky outcropping connected to the world by a tiny suspension bridge.

This foreboding medieval castle was twice besieged by barons rebelling against the English king.

This 15th century pub is one of only two pubs in England situated on consecrated ground.

This enormous sculpture honors an English town's engineering and industrial heritage

The oldest standing concrete bridge in England was also constructed as a work of art.

These abandoned coal mine towers near Sherwood Forest might soon boast the U.K.’s longest zip-line.

In this medieval fish bowl, the carp weren't pets.

The ancestral home of beloved English poet Lord Byron has a bizarre history.

The longest and steepest staircase locks in the United Kingdom.

This church is considered the largest and most complete Saxon church in England.

Home to Alan Turing, the cracking of the Enigma code, and Captain Ridley's shooting party.

Isaac Newton's former home, where the famous apple tree still stands.

This iconic building was founded as a school for the impoverished, but became one for the sons of the local gentry.

The longest and tallest aqueduct in Britain can actually be sailed across.

At 1,732 feet above sea level, this spectacularly isolated yet surprisingly bustling bar is the highest pub in Britain.

A historic Georgian building and warm springs.

Some of England's last cave dwellers lived and worked within this huge cave.

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

A magnificent winding road through a steep valley, with deep natural caverns at the bottom

Dublin's most modern, visually spectacular bridge is modeled after Ireland's national emblem.

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

The heads of two giant mythological water horses honor Scotland's horselord past.