This legendary stone is of unknown origin, and throughout history has been a literal touchstone for British leaders.

This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the Harry Potter films.

A mysterious pair of mice eating a piece of cheese is London's smallest public sculpture.

The last four extravagant street signs of London's historic banking street.

On the Spree bank, discover one of the last reminders of a symbolic wall that divided, and was torn down by the people.

Copenhagen's celebrated theme park and gardens.

One of the few standing Roman lighthouses and a labyrinth of tunnels are a couple of the secrets at this historic castle.

Built in 1911, the Tees Transporter Bridge is one of only six transporter bridges still in operation.

A statue erected in honor of the toadish nickname given to Jersey residents by the French.

Arthur, Merlin, and Guinevere are among the largest and oldest satellite dishes on the planet.

Be(w)ar(e) the moat around this historic Czech castle.

This series of rope-style bridges brings visitors into a jungle layer that is usually reserved for birds and monkeys.

Where thousands of slaves passed through the "Door of No Return."

Isaac Newton's former home, where the famous apple tree still stands.

This huge concrete map of Scotland was built as a thank you gift from a Polish soldier.

A quiet memorial to those who died saving others in the heart of the City of London.

London's only public statue of the much-married monarch adorns the gate to St Bartholomew’s Hospital.

A plaque hangs near the execution place of the Scottish Independence leader famously depicted in "Braveheart."

A portly statue of a golden boy commemorates an unusual cause of the Great Fire of London: the sin of gluttony.

Public access to clean drinking water was an instant hit among the masses.

The mark of the Devil's horns on a marble column in Milan.

Giant naked man on a hillside.

This churchyard arbor is surrounded by hundreds of gravestones placed there by author Thomas Hardy.

A pedestrian island in the middle of world-famous Times Square emits a strange (and purposeful) humming noise.