This 11th century tower is said to be the oldest building in Oxford.

Six ravens are kept captive (but well-fed) at the Tower of London to prevent the fall of the Crown.

Mysteriously stacked storefront paths give this medieval British town an iconic style like none other.

Abstract dinosaur models in London.

Hear the quietest sound from across the dome.

The popularity of Sherlock Holmes led to the creation of his fictional address, turning the orderly London street numbers askew.

The spot where Oxford garnered its name was also home to a medieval philosopher and includes a house covered in statues.

Inside this art museum resides one of Glasgow's most famous musical instruments.

This massive monument has been telling the time for 150 years—at a slight angle.

This unusual geoglyph was built as a warning so low-flying aircraft wouldn't scare the zoo animals.

An ornate aviary built during the Victorian trend of collecting exotic birds.

A giant roundabout made up of six smaller roundabouts can befuddle the uninitiated.

This Norman castle was once the site of a Victorian-era prison, and now exists as a luxury hotel.

A giant sculpture of the legendary "Salmon of Knowledge" celebrates the return of fish to Belfast's River Lagan.

The spot where three Protestant clergymen were burned at the stake during the reign of "Bloody Mary."

The beautiful non-repeating pattern honors the Oxford professor who discovered it.

Edinburgh's oldest statue hides within a parking lot behind the city's iconic cathedral.

Every St. Andrews student knows to avoid this inscription for fear of a martyr's curse.

For part of the year, this innovative greenhouse is painted white to keep the plants from getting scorched.

The oldest house in Glasgow is now a museum dedicated to the city's medieval history.

Bronze plates placed around this Scottish fishing village form a true-scale model of the solar system.

A theatre built to house the rowdy Oxford graduation ceremonies became the stage for a debate about God's existence.

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

A private selection of curiosities, carefully curated by a young Brighton local.