Stroll through a wonderland of stupendous moss-covered trees.

Trick water gardens from 1619 featuring a 200 piece mechanical theater powered by water.

New fungal and bacterial species call this deadly lake home.

The largest drain hole in the world.

Roman ruins top white travertine terraces formed by ancient hot springs.

At 8,000 feet, the world's highest tea estate draws visitors for both its products and its panoramic views.

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

Once thought to be the oldest living tree in the world, Methuselah was germinated before the Egyptian pyramids were built.

Every equinox this Maya pyramid puts on a spooky ancient light show.

These azure waters were thought to lead to the Mayan Underworld.

Church organ in the Philippines constructed out of bamboo.

One car at a time please.

A gallery of underwater art that can be visited by man and fish alike.

A spectacular cave and a beguiling lake.

The world's highest and most dangerous infinity pool lies at the precipice of Victoria Falls.

Vast stretch of tide-pools with a unique Moroccan charm.

The middle finger of modernity.

A large grotto built in the 16th century amidst Florence's famous Boboli gardens.

Over 50 exquisite hand-painted Renaissance maps decorate a Medici storage room.

Secret refuge and museum of the Duke of Florence.

The oldest operating pharmacy in the world features 800-year-old recipes.

Mysterious painted skulls in Moravia.

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

An ancient ossuary in Rouen.