The stones of this Incan wall complex fit together so well you couldn't fit a piece of paper between some of them.

Three columns of volcanic rock shoot out of the ocean.

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

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

The most powerful waterfall in all of Europe.

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

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

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 elegant arc of a waterfall marks a religious turning point.

A giant ant model welcomes visitors to an exhibit about symbiotic organisms that live with army ant colonies.

An artificial tree in the University of Connecticut greenhouses holds a collection of orchids, mosses, and other tropical epiphytic plants.

On top of Gibbet Hill lie the ruins of a lavish turn-of-the-century estate that never quite came to be.

Supposed Massachusetts Grave of a pre-Columbus Knight Templar.