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

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

A modern Nordic Pompeii on the Icelandic island of Heimaey.

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

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

Three columns of volcanic rock shoot out of the ocean.

The sign that drew attention to a young boy's cucumber stand is now the name of his fruit superstore.

A mysterious castle built as a monument to lost love.

The watery grave of an impractical idea.

Three million year old fossils are exposed for all to see on this Icelandic shore.

A remnant of the last Ice Age, this lake is surrounded by fascinating rock formations.

When waves crash onto this section of beach, the rocks sing a song.

A bizarre house filled with an astounding array of collections.

This prehistoric sinkhole lured exclusively male mammoths to their death, much to the delight of science.

Every president in history is immortalized in bronze in downtown Rapid City.

The granddaddy of all tourist traps, built on ice water, jackalopes, and a giant dinosaur.

Just a man taking his prehistoric pet for a stroll.

A striking sculpture built to honor the women of the Lakota and Dakota Nations.

This Wild West attraction is alive with glitching automatons.

A turn of the century building boasting some of the most beautiful art nouveau architecture in Prague.

In one of the world's smallest countries, a royal's personal winery is open to the public.

The spaceship-like theater, which is still in use, was one of the most popular exhibits at the 1964 New York World's Fair.

These medieval skyscrapers dominate the skyline of this small Tuscan town.

This simple apartment may have inspired some of the most important theories in the history of science.