A perfectly running 230-year-old silver automaton and music box.

In paradise, feral pigs have claimed an island all to themselves.

One of the tallest buildings in Iceland, and perhaps, the most visually impressive.

Stepping away from the glitz of mobsters and casinos to learn about the other history of Vegas.

The history of radiation is on safe display at the foot of a radiation science laboratory.

Each year melting snow turns these Austrian hiking trails into scuba zones.

Egyptian Revival movie palace abandoned for decades and restored in 2013.

A museum on the history of Paris, including a set of Napoleon's toiletries, Proust's room, and relics of the Revolution.

A massive underwater sinkhole made famous by Jacques Cousteau.

Eighty million natural history specimens call this gargantuan museum home.

Stroll through retro Paris while shopping for old postcards and discarded doll heads.

A haunting collection of the vanished and disappearing natural world.

Paris' fabled purveyor of exotic taxidermy and natural history curios.

Where the high court feasted, frolicked, and high courtesans put their royal lovers' diamonds to the test.

Hidden away in a modern library are the remains of one of the 18th century's most celebrated wunderkammers.

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

The once forbidden "secret cabinet" of erotic art from excavations of Pompeii and Herculaneum.

A magically clear, blue river that seems to spring from nowhere.

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

Saintly bones pressed into a wax effigy of a Catholic superstar.

Teeming with illegal goods and services, this towering maze of vice is also a popular tourist accommodation.

The patron saint of spinsters grasps a container of dried blood.

Skeletons dressed in extravagant 18th century royal costumes cavort in the aisles of this German basilica.

Are these prehistoric metal pipes evidence of alien plumbers? Nope, but they are amazing nonetheless.