Thailand's distressed elephants find peace at this Chiang Mai sanctuary.

Medicinal spa created with the discharge from a geothermal energy plant.

Iceland's tribute to its thankless civil servants.

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

This elegant arc of a waterfall marks a religious turning point.

In Northeastern Iceland lies something of an oxymoron: a steaming desert.

A sulfuric martian landscape that looks far better than it smells.

This volcanic cave lake is essentially hard proof that Iceland is the most magical place on Earth.

Iceland's largest lagoon is home to stunning multi-colored icebergs.

Twisted girders are all that remain of an Icelandic bridge that was wiped out by a combination of volcanic heat and glacial floods.

This eye-popping Icelandic crater lake is surrounded by red volcanic rock.

Three columns of volcanic rock shoot out of the ocean.

This fantastical waterfall is hidden in a cave located in a cracked cliff.

The narrow passages will challenge even the bravest driver.

This mysterious, medieval cathedral remains unbuilt but fiercely protected.

The largest lake in the Faroe Islands seems to be held hundreds of feet above sea level thanks to an optical illusion.

This remote island village was in danger of depopulating completely until a tunnel was built to connect it to the rest of the world .

This isolated structure beckons adventurers with sublime views of the Faroe Islands.

Outdoor escalators and art have helped change what was once a notoriously dangerous part of Medellín.

Come for the springs; stay for the mud bath.

Read a book next to a Midtown waterfall.

Nikola Tesla's former home contains an homage hidden from plain sight.

Touching mementoes from those who didn't make it back from World War I still hang in one of New York's oldest bars.

Dodge prohibitionists and slide through the telephone booth in Crif Dogs.