This historic lighthouse was well known for the large number of women who served as its keeper.

This splendid Versailles-inspired mansion has the largest French-style formal gardens in North America.

A monument to a Polish general who fought the American Revolution and became the "Father of the American Cavalry."

Dogs, cats, horses, monkeys, frogs, and fish are laid to rest at the second-oldest pet cemetery in the U.S.

Hidden within an idyllic suburban garden is a memorial dedicated to the victims of a terrifying spree of killings committed on U.S. soil.

Surrounded by traditional homes, this Tolkien-esque dwelling stands out on a quiet street in suburban Maryland.

This painting of a beloved dog will be on display at the Scottish National Gallery at long as the museum exists.

The highest point in Delaware is located under a trailer so this marker across the street will have to do.

A legend says that if this elaborately decorated glass breaks, the good fortune of its owner's household will also disappear.

New York City's first Modernist house.

A Manhattan office building is home to the world's largest chess board.

Spinning silently in the lobby of an Art Deco masterwork is a massive vintage model of the Earth.

A dark patch of the ceiling at Grand Central Terminal which was not restored is still stained brown by tobacco.

This subterranean oyster house has been the pearl of Grand Central Station since 1913.

An extensive collection of fine art devoted to man's best friend.

Just below the surface, shrimp are producing temperatures hotter than the sun.

This translucent sculpture represents a quintessential component of New York City's skyline.

Long the exclusive domain of birds and vagabonds, this little-known Central Park peninsula is open to the public once more.

Amid the marketing blitz of modern Times Square is an elegant holdover from its showbiz glory days.

A pedestrian island in the middle of world-famous Times Square emits a strange (and purposeful) humming noise.

Burke’s oldest cemetery also houses the victim of the county's grisliest murder.

The last early 20th-century schoolhouse in Fairfax County has galvanized the community and engendered a spirit of service among residents.

This unique structure is the only one of its kind in Virginia.

A weathered, American Foursquare-style house originally built for lumber merchant William Wimsatt.