L. Frank Baum wrote part of the "Wizard of Oz" series in this wooden Victorian beach resort.

Nuclear reactor created the plutonium used on Nagasaki.

The world's first nuclear power plant is open to visitors looking to role-play a meltdown.

Home to the deepest rift anywhere on Earth.

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

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

This Yellowstone geyser may not shoot as high as the nearby Old Faithful, but it erupts for considerably longer.

A little-visited ghost town state park offers a glimpse into Montana’s "Silver Queen."

A smoke stack so large, the Washington Monument could fit inside!

The world's largest mineral hot springs is home to a herd of bison, a free public bath house, beautiful mineral formations, and a terrifying swinging bridge.

This spectacular track has run continuously since 1882.

This alpine statue of Jesus in Silverton is said to protect both miners and local economies.

A glimpse of a waterfall is reached by a steel catwalk along a slot canyon located in an Ouray city park.

Two creeks flow out of either end of this canyon in opposite directions.

This remote Colorado canyon is home to the second-largest collection of natural arches in the world.

Explore a wealth of fossils in one of the most prolific dig sites in North America.

It would be easy to walk past this unusual piece of art and have no idea it pays tribute to the odd life of a real chicken.

For over a century, it has been a tradition to raise a flag at the top of this 450-foot sandstone pillar on the 4th of July.

This demon atop the Notre-Dame de Paris looks utterly bored.

Walk upon the mementos of the dead in this Parisian courtyard paved with medieval tombstones.

The site where two doves fell in love.

This 17th-century street hidden beneath Edinburgh was once a breeding ground for the black death.

These steps offer a breathtaking view of one of Europe's most besieged fortresses.

The location of a citizen uprising that led to a gruesome act of mob justice.