Carved by a waterfall in a hard-to-reach rock formation, this heart-shaped rock has inspired romantics for decades.

A religious-themed park filled with folk art to bring biblical stories to life that fell into disrepair and now being restored.

This geothermal hot spring hides beneath a slowly growing mineral dome.

Quite simply the largest tree in the world (by volume).

Welcome to old Florida, where a 1940s mermaid show is still enchanting visitors.

This lab's maddening silence is good for business but bad for sanity.

A sacred site for Native Americans surveyed by George Washington and owned by both King George III and Thomas Jefferson.

This grand gothic brewery has been pumping out suds for over a hundred years.

It's not hard to see why the historic Peabody Conservatory of Music's library has been described as a "cathedral of books."

If drivers cross the rumble strip on this stretch of Route 66 at just the right speed it plays "America the Beautiful."

Frank Lloyd Wright's most iconic home dangles over a Pennsylvania waterfall.

An acoustic anomaly with a mysterious cause.

A room in New York City that contains 250 cubic yards of dirt worth a million dollars.

The world's longest known cave system.

One person's lost luggage is another person's treasure.

Collapsing castle on the Hudson river was once the storage site of military surplus business.

This historic "City of the Dead" lies prominently in the center of New Orleans' famous Garden District.

Established in the '60s, a family-owned tropical drink bar founded by Ray Buhen, bartender to the stars.

A lush green oasis in the middle of Chicago.

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

These tourist trap caverns are said to be the former home of a legendary Pennsylvania Hermit.

Franciscan monks created a facsimile of the Holy Land for North Americans who couldn’t afford the trip overseas.

Take a drunken tour inside the world's largest known geode.

One man's swirling six-acre monument of stone.