The final resting place of soldiers' loyal canine companions.

You may get stranded and everyone's peeing in the water, but at least there's cocktails!

This natural gas vent certainly earns its name as the smallest volcano in Italy.

This Victorian-era public house has set the standard for pub-style elegance for over a hundred years.

This remarkable cave was discovered after a shepherd watched bees enter and exit through a small fissure.

Nicknamed the "Museum of Horrors," this French anatomical collection has been fascinating visitors for over a century.

Macabre astrological automaton clock dating to the late 1400s.

Christ's blood preserved in a Belgian town.

World's largest cave was only discovered in 1991, and now offers tours to the public.

Forgotten German bunkers in China create a sharp cultural contrast.

The middle finger of modernity.

A lake with hundreds of ancient skeletons surrounding it. The surprise is what killed them.

The inspiration for H.P. Lovecraft's horror stories and Batman's Arkham Asylum is now a condominium complex.

Medicinal spa created with the discharge from a geothermal energy plant.

Medical museum that houses most notably the taxidermied remains of Vladimir Demikhov's famous two-headed dog experiment.

A table rock formation that has been intriguing West Virginians for years.

Bring your hiking shoes, wool socks, and thermal underwear for a stay in these cozy forest huts.

This famous archeological mystery may be an ancient example of movable type.

The bookstore with bookshelves built into unlikely places.

One of the most beautiful bookstores in the world hides a neo-Gothic interior behind an art nouveau facade.

Underground hospital complex constructed by slave laborers during the German occupation of the Channel Islands.

Central New York's first aquaponic farm (Closed).

Self-sufficient greenhouse floating on the Hudson River.

The stately remains of Llywelyn the Great's mighty fortress.