The end of the 4 Line is also the end of the line for 300,000 souls in one of NYC's most illustrious cemeteries.

This strange, big-tailed beast became a Pennsylvania town's unofficial mascot.

Once considered a marvel of engineering, this 107-mile canal played an integral role in building New York City.

Filled with history, this cemetery is maintained each summer by a few hungry goats.

Prank calls to this place, originally the "Tube Bar," inspired the creation of a Simpsons character.

A Victorian cemetery in the heart of Brooklyn remains a popular mecca of morbid curiosity.

A bit of retro transportation flair preserved in the world's largest department store.

There are owls with glowing eyes in Herald Square.

A once-groundbreaking power plant turned into a hotel and mini-museum of archeological and geological wonders.

A statue honoring 44 continuous years of greeting passing ships.

The first public building in Savannah to offer air conditioning was a luxurious cinema that still operates today.

An early-19th-century hotel with a past that is steeped in the Civil War.

One of Savannah's oldest and most haunted cemeteries, featuring graves desecrated by Sherman's Union Army.

More than a century after her death, Little Gracie Watson remains one of Savannah's most often-visited residents.

An eerie smiling woman looms above the granite tombstones.

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

The famous author's cottage hideaway.

This Delaware River bridge is emblazoned with a catty slogan from a more prosperous time.

Now abandoned, the first public health hospital in the U.S. saw more than one million immigrants from around the world.

An eerie diorama that captures the majestic nature of a few prehistoric-looking beasts.

Creating this diorama spurred naturalist Carl Akeley to begin advocating to protect the apes.

One of the most dazzling dioramas at the American Museum of Natural History is also one of the oldest.

This impressive scene portrays the elusive forest giraffe of Central Africa.

This poignant display is now a memorial to these regionally extinct species.