One of Australia's largest secondhand bookstores.

The unique ecosystem atop an Australian mountain is home to some colorful inhabitants.

Once the path of a railway tunnel, now home to thousands of glowing insects.

An Australian lake whose pink hue defies scientific explanation.

A town whose main resource was blue asbestos... what could possibly go wrong?

An abandoned railroad tunnel is now filled with bioluminescent bugs.

Nature is leading a successful mutiny on this century-old freighter.

What was once thought to be a wellspring of unicorn bones is actually just a prehistoric burial site.

When the rain falls, this drain system turns into a musical instrument.

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

This medieval castle overlooking the Elzbach river looks just like it did hundreds of years ago.

This ancient oak tree sheltered accused "witches" in the 17th century.

On a dusty county road sit the ruins of a ghost town's abandoned church.

This isolated Japanese mountain village untouched by time showcases unique and stunning traditional architecture.

A silly medieval mural preserved on the side of a Viennese house.

The largest stone moai on Rapa Nui.

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

A sunken idol welcomes parishioners to Davy Jones' Locker.

Five candy-colored villages on the Italian Riviera.

The doodles of a genius line the walls of a secret room under the Medici Chapel, where they were hidden for nearly 500 years.

An Italian hillside ghost town.

Abandoned medieval hill town.

The world's only international cryptozoology museum is host to an unrivaled collection of mysterious objects.

This Venice bookstore has resigned itself to constant flooding by keeping its books in bathtubs and boats.