Toxic waste disaster that founded the Superfund program.

One of many reminders of Tesla's scientific contributions overlooks the falls which inspired him.

All that remains of a magnate's dream home is a historic gate and an abandoned public pool.

Possible relics of the ancient Roman city are hidden in this restaurant's façade.

Manhattan's lighthouse, erected at the insistence of the unsinkable Molly Brown.

Where now stands a 42-story condominium tower of marble, glass and steel was once the central market of New York’s slave trade.

Unrepaired walls from a 1920 anarchist bomb attack.

This cemetery has graves dating back to the 17th century, including the city's oldest carved tombstone and an ominous cryptogram.

This anonymous businessman sculpted in bronze became an enduring memorial after 9/11, and had been mistaken by rescue workers for a survivor in the rubble.

A clock set into the concrete outside a Manhattan jeweler has been telling time underfoot for over a century.

The last living thing to come out of the rubble after 9/11 is now a symbol of hope and resilience.

The humble beginnings of one of America’s greatest songsmiths.

"X" marks the spot of an echo chamber in the middle of a plaza.

An eerie smiling woman looms above the granite tombstones.

A 19th-century cemetery device to ensure that the prematurely buried would be "saved by the bell."

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

This haunting tombstone comes complete with a heartbreaking story of love and loss.

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

This twisty sign depicts the chain's first logo.

Local myth claims this is a Sears catalogue home with its windows installed upside-down.

This kitschy tavern is also home to rare early editions of "Treasure Island."

A statue honoring 44 continuous years of greeting passing ships.

This bar hosts an ever-evolving napkin art installation devoted to an American president.

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