This charming colonial alleyway is one of the oldest continuously used residential streets in the U.S.

America’s smallest national park site is the former residence of exiled Polish national hero Thaddeus Kosciuszko.

Tour the dark and beloved poet's former cobwebbed basement, which may have inspired "The Black Cat."

The oldest living tree in Manhattan comes shrouded in sinister legend.

Beautiful steampunk ghosts of early Massachusetts.

Dim sum, served in a grand old theater.

This former Norwegian sailor's church is slowly being taken over by ramshackle robot musicians.

A room in New York City that contains 250 cubic yards of dirt.

Mysterious 500-year-old tapestries depict a unicorn hunt.

This local gem houses the largest collection of pre-Raphaelite paintings outside of the U.K.

At the top of the hour, this steam-powered clock's eight brass whistles play "Back Home Again in Indiana."

This stately clubhouse has showcased German-American culture for over a century.

Once adorning a New York skyscraper, these reclaimed ruins now haunt an Indiana park.

This rare basilica nestled right in downtown Asheville is an architectural marvel, inside and out.

Decades before the scandal, this staircase on the river was a literal "water gate."

A museum cafe showcases Native American dishes and indigenous ingredients from across the Western Hemisphere.

The world’s first penitentiary, meant to be humane, drove men insane.

The first declared National Monument in the United States.

One of America's first dinosaur parks gives a window into Depression-era paleontology.

The granddaddy of all tourist traps, built on ice water, jackalopes, and a giant dinosaur.

The world's largest mountain carving could fit all of Mount Rushmore inside it many times over.

Scary metal statues adorn some of the signature buildings of Burlington, Vermont.

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

This handsome giant is said to mark the birthplace of the mythical woodsman and even had a cameo in a Stephen King novel.