A monument to the Mohawk people stands along an old Native American trade route.

This sprawling 18th-century cemetery features unique and beautiful gravestones, including one shaped like a tree.

The railroad tunnel nicknamed the "Bloody Pit" for taking the lives of hundreds during its construction.

Grab a slice of pizza next to the remains of the "human monkey" who ran for mayor.

Need to book a room at the Hotel Pennsylvania? Just dial up 6-5000.

The oldest family-run luncheonette in New York, last renovated in 1948, still serves food and drinks the old-fashioned way.

A crumbling hospital from the 1850s on Roosevelt Island.

One of only two remaining Victorian-era greenhouses in New York.

A Victorian cemetery in the heart of Brooklyn remains a popular mecca of morbid curiosity.

Located within a historic park, the beacon is the oldest standing structure in Miami.

Europe's official "zero-level," the equator of elevation.

This abandoned five-star hotel is now a five-star urban exploration destination.

A pair of mutilated bronze octopuses slump at the base of the monument honoring California's admission to the U.S.