The mysterious wonder of an underground waterfall is illuminated by multicolored lights.

This funicular railway rumbles along for a mile up the nearly vertical face of Chattanooga’s Lookout Mountain.

This historic train station has been converted to a locomotive themed hotel.

The burial place of some of Mexico's most prominent residents is full of macabre stories and hidden masonic symbols.

In northern Ohio, the glorious past of America's trains is on full display.

Lie in a hammock where George Washington stood.

An uber-secure, windowless tower of doom in the center of Manhattan is an NSA spyscraper.

A popular European tradition makes its way to the states on one of America's most famous bridges.

A pedestrian island in the middle of world-famous Times Square emits a strange (and purposeful) humming noise.

Wall Street has a new heroine, a bronze statue of a small but fierce girl.

The "Seinfeld" diner.

This unmarked and unloved Manhattan subway grate created one of the most iconic images in American cinema.

Elevated freight railway turned wildly successful urban park.

Try not to get slimed in Tribeca.

Manhattan’s Battery Park has a whimsical carousel full of spinning, glowing fish.

These ancient ritual mounds are our best window into the culture of the ancient Mississippians.

Divinely-inspired village houses 6,000 dolls, plus strange and lovely outsider art.

The former home of the Nobel Prize-winning American writer is now home to dozens of six-toed cats.

This bridge is haunted by the ghost of a distraught mother.

The highest point in North Carolina and the United States east of the Mississippi River, Mount Mitchell is named after argumentative explorer Elisha Mitchell.

According to local lore, this narrow passageway through two large rocks was accidentally created by the devil himself.

A mother's mourning for her lost son is remembered in this small park embedded with his memory.

This small museum dedicated to the painful memory of segregation is essentially a time capsule.

This Transylvania County city is home to a rare white squirrel population that is descended from an escaped carnival animal.