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

Giant, friendly pelicans in Central London, the most unlikely of places.

Thanks to modern navigational tools we now know that the true prime meridian runs through a park next door.

The Metropolitan Police refurbished the blue box (perhaps not coincidentally) the same year "Doctor Who" returned to TV screens.

A 1,215-foot tunnel transports pedestrians beneath the River Thames.

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

Macabre astrological automaton clock dating to the late 1400s.

Famously misunderstood wonder of the ancient world

The most iconic structure in Scotland has been home to bishops, colonels, and Sean Connery characters.

The fairy tale castle of the "fairy-tale king."

Kings Cross Station pays tribute to its role in Britain's best-selling book series.

One of the few remaining casualties of the London Blitz, this destroyed church has become an enchanting public garden.

France's highest manned weather station is the only one still inhabited by meteorologists.

On this romantic tidal island reachable only at low tide the tomb of a famous French writer overlooks the sea.

A small house sits between two huge rocks, with its back to the sea.

The video game-themed street art first popped up in the French city.

Bordered by forest on three sides and the ocean on the other, the Great Dune of Pilat is the highest sand dune in Europe.

France's high-tech, future-themed amusement park.

The tradition of open-air secondhand and antiquarian bookselling in Paris dates back to the Renaissance.

The world's tallest bridge is also possibly the most elegant.

Museum in a swimming pool where the water still flows.

This ancient Roman bridge and aqueduct still stands as a wonder of classical construction.

Massive puppet-automaton machines created by French artist collective Machines de l’Ile.

A series of abstract, silly sculptures represent the works of a great modern classical composer.