Touching mementoes from those who didn't make it back from World War I still hang in one of New York's oldest bars.

The taxidermied remains of Charles Dickens' pet raven, which helped inspire one of Edgar Allan Poe's most famous poems.

One of the last few places in Manhattan that employed a pneumatic systemic keeps it on display.

Curious crustaceans support an obelisk from ancient Egypt that now stands in modern-day Central Park.

The world's toughest modern Christian pilgrimage leads directly to the gates of Hell.

The mummified relics of an American missionary.

A gigantic 10-foot tall stone man.

Unrepaired walls from a 1920 anarchist bomb attack.

Waterway populated with abandoned projects, including a submarine.

Ride the subways of yesteryear.

A decommissioned military complex that's now a modern industrial park.

Four cars from the old system were once on display, but were removed in 2014.

One of the deadliest American air disasters is nearly forgotten in Brooklyn.

A curious friendship between two inanimate ladies.

Detailed facade of a brownstone in Boerum Hill.

Abandoned 19th century homes once occupied by naval officers, soon to be demolished.