Synagogue built from the stones of Solomon's temple contains the golem of Prague.

Countless grotesque faces stare out from this eerie Prague art wall.

The ruins of the castle that chemicals built.

Medieval museum built over Roman baths that features famous tapestries of a lady and a unicorn.

Home to items never before seen by the public.

An alley covered with 20 years of bubble gum.

A hotel and restaurant serving as the mecca of kitsch.

Figures of unknown origin carved into the surfaces of underground caves.

A huge Megalithic chamber tomb located behind a cafe.

A minotaur, a labyrinth, and a dubious restoration pull in visitors from around the world.

Macabre astrological automaton clock dating to the late 1400s.

A church of bones, decorated with 40,000 human skeletons.

Climb inside an iron crystal magnified 165 billion times its normal size.

A little sculpture with a large wardrobe.

This whimsical Oz-themed park had a wonderful impact on the surrounding neighborhood.

A hot dog stand where the heads are just as hot as the dogs.

Statue of Lenin, from Cold War era Czechoslovakia, now in a neighborhood of Seattle.

A giant Troll lurks under one of Seattle's oldest bridges.

The world's smallest park was dedicated in 1948 as the only colony for leprechauns west of Ireland.

Portlandia is the second-largest copper repoussé statue in the United States.

The magic's in the hole!

A vertically floating hemlock controls the waves and weather at Crater Lake.

The deepest lake in the United States, and once the site of epic destruction that lives on in legends.

360-degree virtual reality chamber physically immerses scientists into their data.