One of nature's most well-scheduled phenomenons resides in Wyoming's Yellowstone National Park.

The largest hot spring in the United States is, as the name suggests, a stunning show of natural color.

A beautiful geyser under environmental threat.

The magazine keeps a perfectly groomed display garden for its photo shoots.

A centuries-old church stands as a testament to Boston's "father of architecture."

An interesting decoration on this historic site, this weathervane comes with as many legends as it does questions.

A former waterfront market is now in the center of town due to some interesting Boston engineering.

Historic Hull Street was actually the first street with a proper name in the Boston area.

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

Two thousand artifacts from around the world collected by one woman who loved to travel.

These warring psychedelic crags commemorate an unsuccessful military operation.

An apparition of Virgin Mary in Herzegovina.

Bridge that died in war and was resurected.

A war-torn Olympic relic is being overtaken by graffiti and nature.

Inat Kuća, or "House of Spite," is more than just an oddly named restaurant.

Place with alleged mystical powers in Old Orthodox Church in Sarajevo.

The first mosque in the world to receive electricity.

The place where World War I began.

This historic timepiece is thought to be the only public clock in the world that keeps lunar time.

A number of craters left by fatal mortar strikes have been filled with red resin to remember those lost during the Siege of Sarajevo.

This enormous abstract sculpture is part jungle gym, part elaborate noise-making machine.

This historic cemetery was inaccessible for several years due to dozens of land mines.

This museum preserves the hand-dug tunnel that kept Sarajevo afloat during the Serbian siege.

Controversial site of what could be Europe's first pyramid.