A luxurious 1880s hotel with its fair share of Tiffany stained glass, Edison electricity, and of course, ghosts.

The world's oldest continuously operating airport was founded by the Wright Brothers.

The design of this historic domed church was influenced by Thomas Jefferson and intended as a statement of religious freedom.

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

This fort down the Potomac from Washington, D.C. was once the only defensive fort protecting the capital.

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

Narrowest house in Boston.

This monument on Breed's Hill proves that one of the most famous battles of the Revolutionary War is misnamed.

Berthed at the Charlestown Navy Yard in Boston, "Old Ironsides" is the oldest commissioned warship still afloat.

The gilded, masterful astronomical clock will calculate time, dates, and planetary positions for thousands of years to come.

This historical air terminal in Houston is slowly becoming an aviation museum dedicated to the city's aeronautical history.

This lonely waterfront memorial to the men of the Titanic was erected by the "Women of America."

The deadly but beautiful ornamental oleander was planted all over the island of Galveston after the hurricane of 1900.

This hollowed salt dome is the largest oil storage facility in the world, hoarding 250 million barrels of crude oil.

The most accurate timepiece in the world.

Tokyo’s only Vaudeville-cuckoo clock–steampunk-Victorian curio cabinet time piece.

This sandstone gorge in New York State's Adirondack Mountains is home to waterfalls, flumes, and more.

A monumental statue of RCA's mascot now sits atop a historical society roof after a life of moving around.

This bug-eyed water wheel uses the power of the Sun to clean up Baltimore Harbor.

On this island, you suck away your garbage via an elaborate pneumatic tube system.

More than 300,000 historical artifacts from the famous music venue, from Duke Ellington's handwritten score to The Beatles' booking slip.

Hidden in Central Park's Ramble is a troublesome cave buried just beneath the surface.

This whimsical group of statues is a favorite of children who love to climb all over Lewis Carroll's beloved characters.

The former estate of the Guggenheims, part of the opulent Gold Coast that inspired the Great Gatsby.