Tulsa's historic skyscrapers define the oil boom era of Art Deco construction, and are known for their ornate arched lobbies.

The homestead of American patriot John Adams.

A memorial to the nearly 10,000 American soldiers laid to rest on the beaches of Normandy during WWII.

Thomas Jefferson's estate is home to hundreds of varieties of historic fruits and vegetables.

Edgar Allan Poe's old dorm is now a shrine to the author's legacy.

Hidden for 165 years inside a building designed by Thomas Jefferson are the remains of what may be America's first educational chemistry lab.

The story behind the mysterious symbol painted in front of the historic university's famous Rotunda.

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

This Frank Lloyd Wright summer house was designed along Lake Erie as a retreat for a client's wife.

Created by four famous men (Henry Hobson Richardson, Frederick Law Olmsted, Calvert Vaux and Thomas Story Kirkbride), the beautifully designed Buffalo State Asylum was resurrected as a hotel and art center...but still boasts a ghost story or two!

One of Frank Lloyd Wright's greatest—and favorite—architectural masterpieces was almost lost.

The seat of Buffalo government is a gorgeous Art Deco palace.

This vessel is believed to be the oldest operating fireboat in the world.

Buffalo's abandoned concrete grain elevators are getting a second life.

The site of William McKinley's tragic assassination is only marked by an underwhelming boulder.

The only boathouse Frank Lloyd Wright ever designed was also the only unbuilt structure in his famous Wasmuth Portfolio, until 2007.

Ruins of a once-prized railroad station in New York.

A 19th-century architectural wonder designed by the "father of the skyscraper."

Elevated freight railway turned wildly successful urban park.

A dilapidated dock tells the story of Titanic's missed arrival.

An artist's cute bronze subway sculptures belie his violent artistic past.

Mysterious 500-year-old tapestries depict a unicorn hunt.

This hidden oasis features a stunning view of the Hudson River and the Palisades from a castle-like museum.

Elvis's own personal tropical hideaway.