Mrs. Mallard and her brood are a beloved fixture in Boston Public Garden.

This bridge was the birthplace of a unit of measurement based on a fraternity joke.

Stone monument honoring a town founder has a witch-boot shaped stain and a curse to go with it.

The first bridge observation tower in the U.S. offers one of the best views of Maine.

The world's only international cryptozoology museum is host to an unrivaled collection of mysterious objects.

A layered tribute to the work of mosaicist Isaiah Zagar.

The first dish to bounce radio signals off the Moon, it was the forerunner to the U.S. Space Program.

A museum of unusual collections, mini-towns, and a half-dog, half-alligator.

A private collection of massive steel monsters guarding a Texas pipe works.

Macabre headstones carved with winged skulls, dancing skeletons, and pithy reminders of impending death.

One man's homage to the orange as realized through a long-term folk art labor of love.

A pink cottage covered in hearts served as a haven and a resting place for LGBTQ activists.

Go inside to really appreciate this 500-year-old technological masterpiece.

The Old Courthouse takes visitors on a captivating trip through St. Louis' timeline.

Terrifically morbid cemetary and site of famous Paracelsus' grave.

Macabre astrological automaton clock dating to the late 1400s.

New Orleans' famous cemetery, located on the site of a former race track.

"If she'd leave us alone, we would have a happy home, sent from down below."

Storyville was New Orleans' historic red light district and hotbed of jazz music, sometimes referred to simply as "The District."

A spiritual vortex among the red rocks in Sedona.

Infamous marsh filled with toxic waste, World War II-era London rubble, and dead mobsters galore.

Oldest existing church in New York and the inspiration for Washington Irving's "The Legend of Sleepy Hollow."

Haunted Victorian house that inspired a legendary "Ghostbusters" court ruling.

Largest Roman Catholic church in North America.