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

An eerie, derelict amusement park in Berlin.

The bomb-ravaged remains of of a colossal Neptune.

An alchemist's "magic door" stands in the middle of a Roman park.

Largest necropolis in the Mediterranean.

Renaissance villa and gardens complete with a tormented colossus.

These medieval skyscrapers dominate the skyline of this small Tuscan town.

Geothermal waterfalls in Tuscany.

Medieval town turned hippie commune, once home to the secret foreskin of Jesus Christ.

This immaculate and historic water garden culminates in a massive stone dining table with an inset fountain for chilling the wine of the Cardinal's guests.

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

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

Humble beginnings for one of the world's most famous scientists.

A musical instrument played by the sea.

Cliffside houses provide a spectacular view from their perch above the valley.

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

Copenhagen's celebrated theme park and gardens.

A mythically themed self-built sculpture park.

The bizarre visions of H.R. Giger, tucked away in a Swiss medieval city.

A memorial to a Swedish hockey player's "encounter" with aliens.

18th century opera in its original splendor.