This tribute to the fictional detective stands at the famous literary character's address.

This cannonball embedded in the side of an Edinburgh house once served a surprisingly pedestrian purpose.

A multi-storied painting that depicts the area's rich and diverse maritime history.

This figure of a local merchant is said to reanimate and do a dance during Hogmanay.

The main residence of the Erskine family and the hereditary keeper of the nearby royal Stirling Castle.

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

A gigantic mechanical bull rages over unsuspecting passengers at Birmingham’s central station.

A petite castle folly in the English countryside.

This medieval sanctuary's tree-framed door looks like a portal to a mythical realm.

A small and tranquil hidden garden in commemoration of one of the great Victorian plant collectors.

The oldest residential street in Europe also features an optical illusion.

This astronomical clock is the second oldest in England.

This hill and tower are steeped in legend, from King Arthur to the Holy Grail.

Fascinating town where normal life interfaces with the occult.

In the ruins of Glastonbury Abbey lies the alleged resting place of the legendary king.

The accidental discovery of this gilt bronze head led archaeologists to find the Roman Baths in the city of Bath

The only pub in the world surrounded by an ancient stone circle.

The largest stone circle in the world has ended up bringing up more questions than it has answered.

Famously misunderstood wonder of the ancient world

Ancient human remains unearthed around the iconic monument.

These ornate, fish-shaped water spouts guard Savannah’s historic facades.

A 132-year-old telescope continues to keep watch over the night skies above Providence.

Final resting place of Antarctic explorer Ernest Shackleton.

At Washington's Dulles Airport is a satellite museum (no pun intended) with three quarters of a million square feet of aircraft history.