Intensely colorful calcite pools in Southern China.

This abandoned fishing settlement may well be the greenest village in the world.

This vertical pinnacle in China was the inspiration for the floating mountains in the movie “Avatar.”

A fifth-century temple improbably built into the side of a cliff.

A part of the world's largest marsh seems to be growing bright red Martian grass.

An eclectic sculpture park rises atop a giant pile of ashes in Sweden.

Micro-nation based around a nine-story high illegally built tower.

This collection of 80 polarizing foods aims to challenge your subjective notions of repulsion.

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

Sweden's "good old days" painstakingly re-created in a model village.

The world's first ice hotel is still one of the most elaborate and beautiful.

This former Baroque palace on the historic Calle Montcada is a rare architectural gem and was once the meeting place of an aristocratic scholarly society.

Bacteria and algae give the salty water its bubblegum hue.

A labyrinth of ancient tunnels hidden below the city holds the ruins of 2,500 years of history.

Hidden in an Italian forest is a completely homemade amusement park that has taken a lifetime to create.

Sitting on an Italian hilltop is this surreal fortress built by the mad inventor of electrohomeopathy.

This community on a small Venetian island has taken to painting their houses in bright neon hues.

A master of trompe-l'oeil creates a stunning, tourist-fooling dome out of a flat ceiling.

A moody and picturesque riverside ruin overgrown with vegetation.

The enchanting archway is the only surviving portal into Dublin's lost medieval wall.

The world of the ancient Celtic civilization explained through a bewitching 11 acre garden.

An endless sea of white conical domes.

An alien landscape of chalk-rock in the Egyptian desert.

A massive work of modern art that appears to be a crop circle in the middle of the desert.