Dolphins, ancient clams and hundreds of waterfalls make this one of the world's top tourist destinations.

Tubing through a cave lit with glowworms is a magical underground experience.

A series of waterfalls so massive they straddle the border of Argentina and Brazil.

A stunning Catholic cathedral built by a curve-loving communist in Brazil’s newly created capital.

Along this wire fence, travelers have been leaving a particular memento since 2012.

On an island south of Iceland, a large volcanic rock formation resembles an elephant.

Iceland's tribute to its thankless civil servants.

Inside this Icelandic greenhouse, geothermal energy keeps tomatoes warm and growing.

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

A modern Nordic Pompeii on the Icelandic island of Heimaey.

The picturesque birthplace of Icelandic democracy is drenched in the blood of its brutal past.

This stunning concert hall has become a symbol of Iceland's national recovery.

Iceland's largest geothermal mud pool is a little bit haunted and a little bit dangerous.

A formerly glacier-tipped volcano that inspired none other than Jules Verne.

This tiny museum's sizable collection is jammed into a former underground public toilet.

This wrecked airplane has been sitting on a black sand beach since the 1970s.

Every summer local children form "pysja patrols" to save young birds that have wandered from their nests.

If a glacial river suddenly diving into a sheer chasm via a dramatic, multi-stage waterfall isn't peak Iceland, it's certainly close.

This valley of hot springs and boiling mud pots is home to the record-holding "Geysir," which originated the English word.

Climb right into the heart of this colorful Iceland volcano.

Walk in the footsteps of the gods and straddle two tectonic plates.

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

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

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