This memorial honors thousands of enslaved Africans and their descendants who died in colonial New York.

Surrounded by low rise buildings and partially converted into an auto body shop, this marble archway is the only vestige of a forgotten Manhattan estate.

You must take the A train... to the last active cemetery in Manhattan.

A reminder to choose water over wine since 1888.

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

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.

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

New York City's only radical feminist independent bookstore.

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

The last remnants of what was once one of the world's grandest hotels can now be found in a Manhattan subway station.

In its day this historic fort held 100 cannons pointed in almost every direction to protect New York.

Blighted Irish field and the ruins of a 19th-century cottage on the edge of urban Manhattan.

The oldest living tree in Manhattan comes shrouded in sinister legend.

Visit the monolithic tomb of America's most famous general.

A living archive of urban activism and space reclaimed.

This historic graveyard monument is dedicated to a tragic victim of witch trial hysteria.

The location of one of the first private Catholic schools in the country, providing a valuable sanctuary during the tumultuous period when Protestant and Catholic students were at odds.

A plaque marking the famous abolitionist's birthplace often overlooked by visitors to the nearby Charles Sumner House.

Macabre headstones carved with winged skulls, dancing skeletons, and pithy reminders of impending death.

This bike path was sunk below water level for maximum wonder.

An 18th-century estate owner thought these cottages were an eyesore, so he artfully disguised them as a church.

A pedestrian island in the middle of world-famous Times Square emits a strange (and purposeful) humming noise.

A DIY art gallery/music venue/lecture hall dedicated to video game culture.

Elevated freight railway turned wildly successful urban park.