This Tuscan lake hides a 13th century town that is still visible when the water recedes.

This amazing medieval fortress stands atop a promontory along the famous Cinque Terre.

The bomb-ravaged remains of of a colossal Neptune.

At the right time of day, sunlight floods through the roof of this cave and illuminates the small pavilion hidden within.

How often do you find security guards patrolling tropical beaches to protect rare sea turtles from poachers? 

A sprawling nature preserve harbors the world's only living dragons.

This pebble beach is so beautiful that taking its rocks is against the law.

This Australian beach is composed of tiny shells.

Crushed coral and crystals give the sand its signature coloration.

Incredible rock formations jut from the southern end of this spectacular stingray-viewing spot.

An early work of the architect Álvaro Siza Vieira, these swimming pools blend into the beach.

One of the only places where Earth’s mantle lies above water.

You can still find treasures on the pebbly beaches of one of the world's oldest jade-producing areas.

A hundred and twenty year old twelve story lighthouse located on a beautiful Indonesian island.

Once home to Komodo dragons, this island dreamscape has a rare combination of white, pink, and black sand beaches.

These sea caves are the source of Xigia Beach's distinct aroma.

A 220-foot deep watery drop-off, filled with marine life.

An enchanting natural wonder in Puerto Rico's Camuy River Park.

More than 2,000 species of tropical plants call this nature preserve and sanctuary home.

The intricate stonework of Machu Picchu serves as a testament to Incan engineers.

Explore the largest pure gypsum deposit in the world, and go dune sledding while you're at it.

This dramatic landscape hidden on the Isle of Skye looks as though you've stepped into the magical realm.

An exquisite tunnel of cascading flowers.

This enormous sinkhole hides a secret world created from divine wrath.