These mysterious Viking chess pieces spent centuries hidden on a remote Scottish island.

An unusual ode to the late Irish playwright, complete with a squiggly bust and coffin-shaped bench.

Site of the first pathological and bacteriological research facility in the United States.

A forgotten relic from New York's bygone trolley system hides in plain sight under a bridge.

A reminder to choose water over wine since 1888.

Red frames showcase remnants of one of New York's original subway stations.

Pulled from the rubble of one of the worst modern tragedies, a steel crossbeam became a symbol of hope for New Yorkers.

Amid the marketing blitz of modern Times Square is an elegant holdover from its showbiz glory days.

The last living thing to come out of the rubble after 9/11 is now a symbol of hope and resilience.

Those belting out show tunes might not realize this piano bar marks the site where Thomas Paine died in 1809.

This subterranean oyster house has been the pearl of Grand Central Station since 1913.

A trove of century-old litho stones from the Puck Building's printing days were discovered behind a cellar wall, and are now hanging in the store.

There are owls with glowing eyes in Herald Square.

Twice a day one of these tragic bronze mariners drowns with the tide to remember all those the sea has taken.

Possible relics of the ancient Roman city are hidden in this restaurant's façade.

A plaque immortalizes the spot where the early American spy said his famous last words: "I only regret that I have but one life to lose for my country."

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

The Tudor-style cottage in the middle of the square is not quite what it seems.

A monument to the thrice mayor of London who according to lore made his fortune by selling his rat-chasing cat.

Rat sculptures try to infiltrate the Graybar Building in an architectural tribute to New York City's nautical history.

The library houses an incredible collection of some of the world's most impressive books and manuscripts.

One of the few remaining American elm trees in New York’s Tompkins Square Park was the birthplace of a new religion.

A sculptural commentary on capitalism pokes up from the East River.

Hundreds of antique bank vault locks on display in New York City.