A rare view of a preserved Victorian science museum.

An abandoned cemetery lies in ruins as the surrounding forest swallows it whole.

Over a dozen Native American earth mounds dating back over 2,000 years dot this Tennessee archaeological park.

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

Mile-long cave system near Great Smoky Mountains.

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

Wild lights and sound effects turn a walk through some caves into an eye-popping 1960s tourist attraction.

A blend of art, antiquities, and Americana fill this museum, surrounded by whimsical, enchanting gardens.

A wrecked ship dating back to the American Revolution was only recently discovered off the Delaware coast.

Enchanting gardens surround a derelict mansion, all hidden in plain sight behind a stone wall.

A scenic fort on the harbor protected Philadelphia from an attack that never came.

The stone marker that Mason and Dixon placed at the eastern end of the famous north-south border they surveyed.

One of the only memorials dedicated to journalists who died in combat.

A star fort along the C&O Canal in western Maryland that protected America in three wars.

Captain John Smith thought these cliffs were amazing in 1608 but sharks thought so 20 million years before him.

The land is home to swimming ponies and a legendary 18th-century treasure.

The final resting place of the tragic king and queen of the Jazz Age is tucked away in a small Maryland graveyard.

This colonial tavern played host to George Washington, Thomas Jefferson, and other famous early Americans.

One of the greatest heroes of the Titanic tragedy came from humble beginnings to this beautiful home.

When ecosystems collide in the arid Southwest.

Despite being one of the most photographed vistas in the Rockies these twin peaks are rightfully known as the "Deadly Bells."

This mysterious petroglyph evokes the ancient swastika symbol but was later vandalized with the more troublesome Nazi one.

A world-class observatory in the California desert.

Step back into the glory days of Florida's nascent tourism industry at this Gilded Age palace.