Mural made of 100,000 pieces of hand blown glass, and until recently, the largest glass mural in the US.

America's most famous museum of medical oddities is home to the remains of Albert Einstein's brain.

These Great Lakes sea caves accessible by boat in the summer turn into temples of ice reachable by foot in the winter.

An island in the middle of a lake, in the middle of a volcano, in the middle of a bigger lake, in the middle of a bigger island, in an archipelago, in the Pacific Ocean.

An emerald-green grotto just a short trip from Austin.

Breathtakingly blue walls shimmer inside the "Glacier Behind the Town."

This picturesque island graveyard is the final resting place of dozens of notorious pirates.

These Nubian pyramids are strange and unique, even by pyramid standards.

Massive stele returned to Ethiopia after 70 years in Rome.

A salty red wasteland in Tanzania is a breeding spot for endangered flamingos.

An abandoned whaling station on an active volcano offers hot springs in Antarctica, surrounded by ruined giants of industry.

This modern monument to pagan belief looks like it was transported straight from ancient times.

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

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

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

Climbing Iceland's highest peak on the rim of the Oræfajökull volcano.

The unique waterfall in Iceland's south features a backdrop of geometric black lava columns.

This tumultuous Icelandic lava field looks so alien European researchers want to use it as a stand-in for Mars.

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

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

An encyclopedic collection of mammal penises.

Outlaws, hot springs, and tragedy have all left their mark on this ancient road in the Icelandic highlands.

This natural Icelandic fissure allows divers to swim right between two volatile tectonic plates.

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