A clock designed to run with perfect accuracy for 10,000 years.

This lonely cast-iron structure is the only wave-washed lighthouse of its kind left in all of Britain.

The world's only museum devoted to the wonders of fluorescence.

This Canary island is a quintessential example of nature’s beauty, and its unbridled fury.

The natural history museum displaying the British bird collections and dioramas of Edward Booth, free of charge.

The largest clown school in Britain offering accredited degrees.

A comic book store that puts the marvel back in marvellous.

Italian cave with exceptional acoustics and an unsavory history.

An abstract monument to a symphonic composer.

Science fiction's grandfather has a fittingly marvelous tomb.

An abandoned stretch of elevated road in the middle of the Brazilian jungle.

The encased skull that is widely believed to belong to St. John the Baptist.

Beneath the city of Lourdes, France is a massive, concrete church.

An ancient hotspot for spotting schools of fish.

Eighty million natural history specimens call this gargantuan museum home.

A collection of housewares from recent Irish history adjoined by a tower from ancient Irish history.

An incarceration museum on the spot of possibly the oldest prison in England.

A town saturated in Italian rationalist architecture was once marshland drained by Mussolini.

This massive fiberglass Gulliver turns every visitor into a Lilliputian.

A fernery hidden by neglect is uncovered, and an ancient specimen along with it.

The resting place for anonymous victims of the Danube's dark waters.

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

A sanctuary for wolves in a community which once trembled in fear of the murderous "Beast of Gévaudan."

Whether hero or rogue, his silver bullet is said to have taken down the murderous "Beast of Gevaudan."