Beside the pew where C.S. Lewis often sat while attending church, a window filled with characters from his beloved stories.

A 16th-century horror show built in a lovely Italian garden.

This picturesque Umbrian city has a subterranean side that has long remained hidden.

This long-abandoned village sits across a narrow gorge from a still-inhabited settlement that was once its twin.

This 16th-century monastery has been turned into a surrealist architecture compound.

A lavish 16th-century mansion filled with spectacular staircases, fantastic frescoes, and gorgeous gardens.

Rebuilt remains of a temple to Roman god Mithras.

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

The cedar tree in Highgate Cemetery earned its title by accident.

A relic of Victorian grandeur hides beneath a busy South London road.

"We gonna rock down to Electric Avenue, and then we'll take it higher..."

The childhood home of Earth's alien chameleon is a humble Brixton flat.

Hidden behind a wall for decades, this masonic lodge was only rediscovered during renovations.

A historic arboretum and non-conformist, non-denominational park cemetery.

Hidden in an Italian forest is a completely homemade amusement park that has taken a lifetime to create.

A stunning Victorian abbey and walled garden on a lakefront.

A diminutive, thousand-year-old church believed to be the smallest in Ireland.

Ruins battered by centuries of war and disaster offer a wondrous glimpse of medieval Ireland.

It's not hard to see why the historic Peabody Conservatory of Music's library has been described as a "cathedral of books."

Walk through spectacular aisles of hanging meat and wagon wheel–sized cheese at the world's largest wholesale food market.

An immersive projection art installation uses sound, scale, and light to take visitors inside classic works of art.

This Parisian gem is one of the most incredible ethnographic museums in the world.

The experimental test tracks of a retro-futuristic monorail still stand in the French countryside.

Monsters and miniatures are held in equal esteem at this wondrous museum.