This small road tunnel is the only place where you can cross beneath the Erie Canal.

Rochester's signature culinary delicacy.

The crash of this great airship signaled the beginning of the end for dirigibles.

A collection of thousands of pieces of unique, colorful glass made in this Ohio town.

Mile-long cave system near Great Smoky Mountains.

A mysterious "wedding cake" castle in the middle of the urban desert.

In Rickwood Caverns, visitors can travel hundreds of feet underground and see beautiful formations unique to the region.

A six-foot pair of socks hangs from a drawer of the world's largest bureau.

A giant, Gilded Age mansion that once belonged to the beer baron of Milwaukee.

This two-room shotgun shack in Tupelo is the birthplace of a King.

You'll need cowboy boots to trek to this old-fashioned saloon nestled in a giant natural cave.

All you ever needed or wanted to know about America's favorite whiskey, but not a drop to drink.

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

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.

A former hospital is now home to a pizza parlor and maybe a few ghosts.

Florida’s half-sized replica of the Vietnam Veterans Wall.

Once the primary source of ice in this region during the mid-20th century.

A local landmark with generations of spraypainted messages, and more being added each day.

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

One of the only Florida forts to remain in the hands of the Union all through the Civil War still stands as a historic stronghold.

Alabama has a fiberglass Stonehenge. With apologies to Spinal Tap, this one is full-size.

Come for the boats, stay to explore the intriguing assortment of art.

A historic Civil War estate-turned-museum looks back on the Confederate States of America.