The spot in the Mile-High City that's exactly 5,280 feet above sea level (at least for now).

A mysterious suspended hand greets unsuspecting visitors at the Tower of London.

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

This small, independent museum documents the unique culture of Deaf people in the United States.

This 1930s-era Route 66 Tulsa landmark was moved, restored, and filled with neon.

A shrine to one of England's female saints in what is believed to be her former home.

The face of the famed flier in a hillside in her hometown.

Topeka has its own great wall, and it's covered in colorful images from the city's history.

The first home of the doomed aviator Amelia Earhart.

Circleville is seriously smitten with this giant gourd.

This popular square's history as the former site of a church is right beneath your feet.

This medieval church is not only notable for its architecture, but also its connection with LGBTQ+ history.

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

Makers and sellers of the original and finest York Ghosts.

A century-old tradition has culminated in a small but singular collection of feline effigies.

It holds a fabulously designed tribute to astronomer Edmond Halley.

At almost 1,000 years old, this is the oldest known door in all of Britain.

Originally meant to hold a statue of King William IV, this support sat empty for years. Today, it hosts a rotating cast of public artwork.

A pair of club-wielding guardians stand watch over London's first public clock to feature a minute hand.

This magnificently macabre shield shows the power of chivalrous love in medieval times.

The medieval woodcut-style artwork chronicles life in medieval London.

The pockmarks across the building's facade are remnants of the Blitz.

The "beautiful" equation predicting the movement of all electromagnetic particles is engraved in front of Newton's tomb.

This ancient Egyptian obelisk still bears the wounds of World War I.