In one of America’s oldest mountain ranges, a long-awaited section of a scenic highway is now open to the public.

One man’s religious convictions led him to build this stone castle meant to withstand an apocalypse.

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

A bizarre roadside attraction and the first instance of miniature golf in the world.

This 19th-century hotel and spa hosted famous guests like like the Vanderbilt family, William Waldorf Astor, Helen Keller, and Jay Gould.

What else would you call a playground hidden in Alabama's oldest and largest cemetery?

A propulsion engine testbed that paved the way for the Space Shuttle launch sits without recognition at this rocket center.

It may look like no more than a full-scale model, but every part of this full Space Shuttle stack had a working role in aviation history.

Bananas are often left for the first monkey America ever recovered alive after being launched into space.

Once a bustling cotton factory, this early 20th-century building is now home to a thriving artspace.

In 1912, a broken section of the reservoir wall released millions of gallons of water and destroyed many homes downhill.

This defunct, fortress-like prison has been the setting for several movies.

This seasonal soft serve shack has been doling out silky swirls since 1951.

The site of the one of the most deadly train wrecks in American history.

This quirky local sculpture is quite literally a fish out of water.

This beloved cheeseburger-slinging trailer holds Nashville's oldest beer license.

This popular park is home to a sea serpent sculpture that now overshadows the twisted history of its creation.

This replica of the Greek structure is in the heart of Nashville.

A rainbow of kulfi and falooda flows from this Indian-style ice cream parlor.

It may take some time to locate, but it's sure to warm even a heart of stone.

For decades these polar bears have roamed all around a Nashville neighborhood.

When Motown musicians came to Nashville in the 1960s they stayed at this historic record-pressing company because hotels wouldn't host them.

The grave of the 19th-century sea captain who coined the phrase "Old Glory" can be found in this quiet cemetery.

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.