A medieval bridge stretches over a sulfur-rich river that leads to year-round natural hot springs.

The possible imprisonment of Vlad the Impaler here earned the medieval castle its nickname, "Dracula's Castle."

A rooftop restaurant hides in plain sight atop Vienna's Palace of Justice.

The former private quarters and office of Dr. Sigmund Freud now hosts a museum housing the works of the founding father of psychoanalysis.

Designed to celebrate the queen's 40th birthday.

An ornate doorway leads to the former site of one of the city's oldest society of merchants.

This church is said to have connections to the Knights Templars.

An authentic, seaworthy replica of the ship that sailed to Newfoundland in 1497.

A quaint hamlet of nine cottages around a small green near Blaise castle.

A monument dedicated to the unrecognized Black "mother" of modern medicine.

17th-century merchants in Bristol nailed their deals by placing money on these pedestals.

This pedestrian footbridge honors Pero Jones, an enslaved African who lived in Bristol.

Once called "the biggest room in the world," this Victorian-era hall is so large that it contains a smaller 1970s heptagonal theatre.

The largest public library in the United Kingdom was designed to reflect the industrial and artistic history of the city where it stands.

After protestors toppled a statue of a 17th-century slave trader, the pedestal where it once stood remains unoccupied.

Once designed as the entrance to Buckingham Palace, this structure was later relocated and stands as a victory arch.

A plaque claims this artwork outside a children's hospital was used in the 1998 Quidditch World Cup.

Manchester's abandoned train depot lingers in a post-industrial purgatory.

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

Banksy's image of a naked man dangling from the window of a sex health clinic.

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

Constructed from recycled wrought iron railroad tracks, it's been described as the most beautiful seaside pier in England.

A historic, reportedly haunted pub that provided inspiration for several famous adventure novels.

The Bristol Camera Obscura housed in an ancient windmill.