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

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

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

The bright red stripes streaking across the rocks are the star feature at this Icelandic waterfall.

Two volcanic lakes in an enormous crater formed in a prehistoric eruption.

The most powerful waterfall in all of Europe.

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

These ominous lava formations were said to be an entrance to the netherworld so of course they inspired a famous metal band.

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

Instead of solid circles, the stoplights in this northern Icelandic town have glowing red hearts.

This ancient structure is widely thought to be the oldest intact pyramid in the world.

Ozymandias’ time-keeping temple.

The largest known Ancient Egyptian obelisk.

This memorial commemorating fallen Swiss Guards of the French Revolution has been called the saddest stone in the world.

This historic covered bridge contains a series of macabre paintings that communicate one thing: everyone dies.

This Swedish astronomical clock was in storage for almost a century before its glorious workings were put on display once more.

A collection of unique outdoor sculptures surounded by the beauty of nature.

A natural gas leak provides a flickering flame beneath a waterfall.

Bouncing, delightful, mechanical art at the MIT Museum.

This monument on Breed's Hill proves that one of the most famous battles of the Revolutionary War is misnamed.

Mrs. Mallard and her brood are a beloved fixture in Boston Public Garden.

Death rituals and sacrifice inside a Peruvian megalith.

If you’ve ever seen a picture of Machu Picchu, then you’ve seen a picture of Huayna Picchu—you just didn’t realize it.

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