An enormous, inside-out glass globe built in 1935.

Possibly the oldest church in Barcelona, this basilica has its pagan and Christian mythologies all mixed up.

The slender brass strip in Prague's Old Town Square was used to tell time from 1652 to 1918.

The oldest garden in Prague, once part of an medieval orchard.

The taxidermy remains of the first mammal ever cloned from an adult cell are on display in Edinburgh.

Protecting the dead from opportunistic body snatchers.

An abandoned quarrying village turned commune is now a hub for learning the Welsh language.

Ship-sized kinetic sculptural fantasy.

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

The largest of London's subterranean rivers and once a mad, bad center of London life.

Carved initials which are nearly 500 years old preserve the deposed Queen's presence at Hampton Court Palace.

A giant white horse drawn on an English hillside may not have been intended to be a horse at all.

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

The watery entrance for condemned prisoners heading to the Tower of London is still visible along the Thames.

Children's hospital in London that operates on royalties received from Peter Pan, which J.M. Barrie signed over in 1929.

This luxury shopping lane has been protected by its own tiny police force for over a century.

Following the trail of an old metro line, this scenic path is haunted by a creepy spriggan statue.

Eighty million natural history specimens call this gargantuan museum home.

This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the first ‘Harry Potter’ film.

The John Snow Memorial marks the epicenter of London's 1854 cholera epidemic.

The studio built by fascists in the hopes of "reviving the film industry" with the occasional propaganda film opportunity thrown in.

The yawning maw of this pagan visage is said to bite off the hands of liars.

The only "Egyptian" pyramid in Europe and the legendary tomb of Remus.

Hundreds of lucky felines haunt the ruins where Caesar was murdered.