America's most famous museum of medical oddities is home to the remains of Albert Einstein's brain.

The world’s largest concentrated solar plant generates as many problems as megawatts.

Bigfoot prints, Feejee mermaids, and haunted dolls on display in a tiny North Carolina town.

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

This quirky hot springs town known to locals as "T or C" was named after a radio show.

An unassuming, powerful monument north of the U.S. Capitol bears witness to the resilience of Japanese Americans during a time of grave injustice.

Where the oil industry began.

Coastal dunes, site of buried Egyptian movie set and former utopian colony.

The brainchild of Eleanor Roosevelt, her "Little Village" was a collectivist dream.

The famed architect designed this Minnesota gas station of the future with a lookout tower.

First planned industrial community in the United States.

A dry lake is what remains of a community founded on a real estate scam.

Decommissioned experimental solar facilities that pioneered solar energy technology.

The remains of this visionary community can still be found much as it was a century ago.

The only surviving prototype of Buckminster Fuller's revolutionary car.

Pensacola's UFO home has withstood many hurricanes—just as the experimental 1960s design intended.

A 1950s eccentric's vision of Eden preserved as a hiking trail.

The entire length of the border is marked by a 20-foot-wide slash through the trees.

This 13-foot smiling peanut in Georgia helped Jimmy Carter win the 1976 presidential election.

A monument marks the beginning of the longest north-south road in the United States.

Her final resting place was intended to be modest and private, but the power of her popularity continues to draw visitors.

This isolated community does not want you to visit.

Where manatees are the snowbird vacationers in these balmy Florida springs.

This hidden stream beneath Indianapolis makes an appearance in the best-selling novel "Underground Airlines."