The final resting place of a space program monolith.

Moscow's imposing monument to the Space Age.

Secret Soviet city once home to Russian cosmonauts and space training facilities.

The world's largest drain sits below the city of Kasukabe, Japan.

Piano-making empire filled with 200-year-old steam machines still churning out 1,000 instruments a year.

17th century streets hidden under Edinburgh were once a breeding ground for the black death.

One of the oldest medical collections in Europe focusing on rare surgical instruments.

These Nubian pyramids are strange and unique, even by pyramid standards.

The abandoned personal amusement park of the King of Pop.

Celebrated as a center of civilization, the remains of the ancient city have been nearly destroyed by greed, egoism, and war.

A surreal museum of extraordinary industrial objects.

Walk upon the mementos of the dead in this Parisian courtyard paved with medieval tombstones.

The Origin of On the Origin of Species.

A fantastic castle rumored to be the birthplace of King Arthur.

Shocking dioramas of human torture, meant to promote human rights awareness.

The famous winding walk at Chartres is surrounded in mystery and myth.

Vibrant street art created with mixed media.

400-year-old garden, restored to beauty.

The world's largest collection of witchcraft regalia.

Rare and strange weather predictors, from mercury barometers to leech prognosticators.

The metal frame is all that's left of a wicker sculpture which once towered over the M5 motorway.

Giant naked man on a hillside.

A open air theatre built on a cliff by an eccentric British woman.

This floating cinema brings new meaning to the phrase "going out" to the movies.