You can still ride this 100-year-old work of art in Brooklyn's largest public park.

Sniff the Titan Arum's rotting flesh.

A little lighthouse in New York City, surrounded by mysterious stories of insanity-driven construction.

A self-made museum in Queens, New York continues to display the work of a sculptor known for paving his own way.

Every equinox this Maya pyramid puts on a spooky ancient light show.

Clap your hands at the base of the pyramid, and the song of a sacred Mayan bird will echo through the air.

No telescopes, no power, no gift shop: The Observatory of Chichen Itza, one of the world's oldest observatories, takes astronomy back to basics.

If you can look past the nearby sewer pipes, this urban sinkhole grotto is a mini-paradise.

A plaque marks the site directly below the mid-air detonation of the atomic bomb over Hiroshima.

A flamboyantly decorated bridge signals diversity and fellowship at the entry to Indianapolis' Broad Ripple Village.

A hidden network of subterranean passageways lies tangled beneath Indianapolis' bustling City Market.

This library and museum is dedicated to the life and literature of the Indianapolis native author.

Ornate limestone building now filled with geologic specimens, and more.

If astronomy had a ghost, it would look like this observatory.

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

Curious crustaceans support an obelisk from ancient Egypt that now stands in modern-day Central Park.

This mosaic dedicated to John Lennon was tended for years by a Beatles super-fan.

Lie in a hammock where George Washington stood.

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

A history of tragedy and a pile of eerie stories have contributed to this house's consistent ranking as one of the most haunted places in Ohio.

This spectacular public market has got meat, fish, vegetables, baked goods, and enough kielbasa for a lifetime.

The only presidential monument to display a late POTUS's actual casket.

A jukebox headstone marks the grave of the Cleveland disc jockey credited with coining the term “rock 'n' roll."

Inside the unassuming cemetery chapel is a magnificent stained glass window and mosaics.