One of only two commuter aerial tramways in the United States.

The world’s oldest and biggest bookstore stocking only mystery, crime fiction, espionage, and thrillers.

Elevated freight railway turned wildly successful urban park.

A crumbling hospital from the 1850s on Roosevelt Island.

Tucked in the back of this amazing antique store is an important piece of medical history.

A terrific purveyor of natural history objects and curios.

Everyone remembers Laurie Strode from Halloween, but this is the house where most of the blood was shed.

This brightly made over hotel hides decades of suicide, serial killers, and mysterious deaths.

Scores of vintage street lamps shine along L.A.’s Miracle Mile.

World-famous, Pink's still manages to keep its prized cult fetish status.

Hollywood's most famous landmark, the "temporary" sign that has stood for decades longer than intended.

Resting place of Hollywood's immortals is also site of summer film screenings.

Medical and zoological curiosities for sale.

The abandoned zoo enclosures offer a perfect place to experience the other side of the bars.

This iconic L.A. bookshop is housed in an abandoned bank—both symbolic and chic.

World's largest collection of serial killer artwork and other macabre exhibits.

This 4,000-foot-diameter hole is touted as "the most well known, best preserved meteorite crater on Earth."

This secluded aqua waterfall in the Grand Canyon is the perfect swimming hole, and the Havasupai tribe's fiercely protected natural wonder.

One of the few surviving Panama Canal steam shovels stands outside a tiny Colorado mining museum.

The final resting place of a 19th-century gold prospector and convicted cannibal.

There are eight natural springs around town, each with a slightly different taste.

The spot in the Mile-High City that's exactly 5,280 feet above sea level (at least for now).

A small horde of mythical creatures lurk almost imperceptibly within the museum's wildlife dioramas.

One of the greatest heroes of the Titanic tragedy came from humble beginnings to this beautiful home.