These carved, weathered stones once gave mail carriers and pub goers a leg up.

A fire once nearly devoured this gorgeous 14th-century Gothic cathedral.

The final resting place of England's most notorious bandit.

This unusual statue overlooking the Royal Mile has an interesting backstory.

Cemetery established by the Victorians as a solution to the overflowing graveyards.

This industrial museum is based on one of the oldest standing iron forges in the U.K.

This chain of artificial lakes was an ideal test ground for the aircraft that would carry the "bouncing bombs" used by the WWII "Dambusters" squad.

A tiny, hidden alleyway dedicated to the father of meteorology.

The city of Manchester quietly unveiled this tribute to a 19th-century massacre.

This trio of neolithic stone monuments are fabled to be a king and his knights that were petrified by a witch.

The house where Charles Darwin's grandfather formed many of his influential ideas and inventions.

This medieval manor house was equipped with secret compartments for hiding priests.

This amazing 15th-century mural remained hidden in plain sight for centuries.

Known as the "Stairway to Heaven," this historic canal dates back to the 1700s.

This reconstructed ancient fort was home to one of the few horse training rings in the Roman Empire.

This police call box harkens back to an era of pre-radio communications, and has a rather unique feature.

This museum housed in a former brothel explores the past and present of sex work in Amsterdam.

This ancient fort overlooks the site of a disastrous retreat from the English Civil War.

The little-known second castle that William the Conqueror built in York.

An incredibly well-preserved piece of ninth-century Viking poop.

In the U.K., a historic workhouse shines a light on the early, harsh treatment of the poor.

A 13th-century inn where the ill-fated King Charles I spent his last night of freedom.

Once a palace for the Archbishop of York, these 15th-century ruins now serve as a haunt for history buffs.

Glasgow's memorial to the International Brigade volunteers from Great Britain who fought and died in the Spanish Civil War.