The façade of this building looks like a bingo board, but it's really a giant clock by a famed graphic designer.

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

Wall Street has a new heroine, a bronze statue of a small but fierce girl.

You’ve heard of bookworms, but this small sculpture at a university library may be the world’s first bookbee.

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

Paths are maintained, but trees have taken over plots.

This triangular lighthouse is one of the most modern in the U.S.

A horse-drawn 1858 steam pumper fire engine encased in glass on the front lawn of a Michigan insurance company.

Perched atop a brick smokestack, this enormous lug nut symbolizes the local minor league baseball team.

An early life spent in this "Old Kentucky Home" inspired the writings of North Carolina's most famous novelist.

This giant iron playfully pays tribute to an early 20th-century architectural trend.

Mysterious ancient boulder carved with petroglyphs in the mountains of Western North Carolina.

This 5-by-6-foot wooden hut is the smallest historic post office in the U.S.

The fine fabric handwoven at Biltmore Industries was once coveted around the world.

The highest point in South Carolina was once owned by an energy company that neglected it but now the state is taking it back.

An unfinished rail tunnel that has since been used to house cheese and bats.

The U.S. Supreme Court's secret Cold War relocation facility in the mountains of North Carolina.

Who needs fancy modern water slides when this giant North Carolina rock works just as well?

The enormous 250-room Vanderbilt mansion conceals hidden doors and secret passageways.

Hidden behind a gate in Greenwich Village is a little farmhouse that once served as the writing studio of a bestselling author.

This slender three-story building has also had several famous residents.

The oldest operating apothecary in the US has treated everyone from Thomas Edison to Mark Twain.

Named the fifth most beautiful building in America in 1885, this former courthouse boasts the best view in the Village.

A Manhattan tombstone honors a popular 19th-century heroine, now long forgotten.