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

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

Anonymously sculpted and donated, these sculptures made from poetry books and pages are sprinkled around the city.

Iceland's largest geothermal mud pool is a little bit haunted and a little bit dangerous.

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

A burial vault located under Tiber Island in the middle of the Italian capital.

Every Easter, a small Sicilian town builds a stunning cathedral out of bread.

A mountain cave is the site of archaeological findings and Paleolithic rock art.

An eccentric artist's abode in this small Italian town has been transformed into a surreal temple of mosaic madness.

This was the second largest mercury mine in the world and one of the oldest preserved mine complexes in Europe.

Apparently, Hell has waterfalls in Slovenia.

The costumes depict the Kurent, the star character of the annual Kurentovanje festival.

A crumbling World War I fort that is reached through a series of concrete tunnels.

A beautiful drive through the foot of the Alps traces the path of 15th-century Turkish raids.

A trough of 700 strange bronze faces runs through a narrow alley in Ljubljana's old town.

The walls of this medieval church are covered with perfectly preserved frescos, including a pristine example of the Dance of Death.

The "dragon babies" of southeastern Europe.

An otherworldly alpine pasture with its own unique microculture that recalls Middle Earth.

A whimsical bridge adorned with decorative dragons.

This abandoned Slovenian military barracks has become a punky-political art squat.

A miniature train-ride through Slovenia's largest cave system.

This one-time health resort was used by aristocrats around the world.

This massive subterranean fissure is known as the "underground Grand Canyon."

Castle and secret tunnel withstood a siege until its owner was killed by the Holy Roman Empire, while sitting on the toilet.