This once-grand marvel of engineering is now 41 miles of scenic hiking trail.

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

This lovely hilltop tower was specifically built to withstand 100 MPH winds.

The author of Uncle Tom's Cabin was neighbors with Mark Twain while living in this Connecticut home.

The former home of Samuel Clemens and family remembers the happiest period of the author's life.

Connecticut grave of the woman responsible for the Winchester Mystery House in California.

An abandoned Depression-era zoo hidden just off the highway.

The "possessed" house that inspired "The Haunting in Connecticut" book and movie.

A religious-themed park filled with folk art to bring biblical stories to life that fell into disrepair and now being restored.

A psychedelic labyrinth on the San Francisco bay.

Not merely a museum – but a whirring powerhouse that offers a subterranean peek into the heart and soul of cable car operations.

San Francisco's most expensive hotel suite includes a secret passageway rumored to have been used by JFK.

Tiki luxury on Nob Hill.

Alleyway plaque commemorating the death of a fictional character in The Maltese Falcon, not far from the author's home.

Nestled in the heart of San Francisco’s bustling Financial District stands a unique homage to the Mayan and Beaux Arts.

Longtime headquarters of controversial boys' club for the world's wealthiest and most powerful.

A historic hotel that made a cameo in Hitchcock's classic film has no intention of letting guests forget its fame.

This charmingly homemade amusement park has been growing for 40 years.

This massive redwood tree has a hole in the base big enough to drive through.

A trash dump made beautiful by nature's power.

One of the most scenic stretches of road in America winds between some of the country's oldest trees.

An optical illusion found amid a logged redwood forest.