Once considered a marvel of engineering, there are now doubts about the structural integrity of this 5.4-mile cable-stayed bridge.

A three-tiered waterfall plummets from a mountain cave with amazing views over the countryside.

Russian researchers who have been excavating ancient squirrel burrows may have brought a 32,000-year-old plant back to life.

The grave of America's 11th president is not in some grand monument but instead it's hidden away on the grounds of the Tennessee Capital.

Where hikers on the Tecumseh Trail can exchange a dirty sock for a free geode.

The last holdout of a pre-Civil War rebel who took the matter of slavery into his own hands.

First a root beer ad, then a golf course clubhouse, and finally a massive teapot.

This abandoned school has had many lives since the early 1900s, and all of them doomed.

A towering tribute to decisiveness stands on the spot where Brigham Young and his followers decided that this must be the place.

This museum remembers the tough Mormon trek across America through an intriguing array of artifacts.

From horses to stainless-steel trucks, this iconic Providence burger wagon is one of the oldest mobile diners in the country.

This fairy tale-themed amusement park is now abandoned, and childhood metaphors abound.

White beach sands made of the remains of tiny, star shaped creatures.

Be a ninja - or just act like one.

Giant sand sculptures of famous people and places are on display near the Tottori sand dunes.

A remarkable lava formation encloses a line of Buddhist statues that can't be accurately counted, according to local mythology.

This ancient temple is set up to take you on a pilgrimage of self.

The bartenders at this crime-fighting theme cafe are actual private detectives by day.

Colloquially known as “piss alley,” this narrow street filled with tiny bars and barbecue stands looks like it was pulled straight out of “Blade Runner.”

A 70-foot-deep ice cave formed by lava from Mt. Fuji on the edge of Japan's "Suicide Forest." 

This “peasant café” in the middle of Tokyo re-creates the atmosphere of the Japanese countryside.

A couple's 60-year love of collecting is on display at this unique stove repair shop in Maine.

A mural of a boy making a phone call connects a southern Maine community to a town in Iraq.

This Art Deco theater is the last remaining opera house in the “little Broadway of the North.”