Dubbed "the smallest burial ground in Manhattan," Marble Cemetery is surprisingly well-known considering its size and its extremely small and subtle entrance gates. It's apparently the oldest public non-sectarian cemetery in New York City; over 2,000 people were buried in white marble tombs here between 1830 and 1870. Opening hours are limited, so check the website for details.

Considering that it's just around the corner, it's no wonder that many confuse the New York City Marble Cemetery with its East Village neighbor, the New York Marble Cemetery. (Go figure, we just hope 19th-century undertakers didn't have the same problem.) Fun fact: former president James Monroe was one of the first folks to be buried here, but his remains were later moved to his home state of Virginia. The cemetery has been around since 1831 and has limited opening hours, so make sure to contact the cemetery via its website if you want to visit.

Can it be a cemetery when there's only one person buried there? We think so. Originally erected in 1797 to honor the death of a five-year-old boy (probably because of the dangerous cliffs in this part of the West Side), the Amiable Child Monument has survived to this day despite advocates who wanted to move it when nearby Grant's Tomb was built in the late 19th century. Many believe it is the the only single-person private grave on city-owned land.

This triangular sliver of a cemetery has its unique shape for a reason—it once ran along the now non-existent Milligan Street, but 11th Street's extension to Sixth Avenue in 1830 destroyed half of it. Behind a wall and a ting gate, you'll find a mossy brick path surrounded by about 30 graves, including an above-ground tomb and a striking monolith. It's the second cemetery of the Spanish & Portuguese Synagogue of the Congregation Shearith Israel, the first Jewish congregation in North America. The congregation also has two other gems. [Photo via Nick Carr of Scouting NY.]

After a long battle, preservationists won landmark status for Brinckerhoff Cemetery last summer. Though there are no visible headstones, and the lot sandwiched between two residential houses in Fresh Meadows is overgrown with weeds, there are historical records that prove that the Brinckerhoffs, a notable farming family, had 76 plots here dating from between 1736 and 1872. [Photo via New York City Cemetery Project.]

Though it's been in use since the early 1730s, when it was adjacent to a colonial farmhouse owned by the Moore family, the small cemetery fell into disrepair until it was spiffed up in the 90s. (Forgotten NY has all the details.) Scouting NY paid the cemetery a visit in 2009, took tons of photos, and lamented the fact that this bit of NYC history is still pretty rundown. [Photo via Scouting NY.]

Forgotten New York has come up with a stellar list of off-the-beaten-path burial grounds. It includes Bay Ridge's Revolutionary War Cemetery, an 18th-century graveyard for members of the Barkaloo family. Even though the last burial took place in 1848, Ephemeral NY reports that there are fresh flags on some of the headstones. Someone in the neighborhood must be taking good care of them. [reportsPhoto via Ephemeral NY.]

The Cemetery of Staten Island's Reformed Church, which dates all the way back to the late 17th-century Dutch settlers of Port Richmond, is still in use today. Though the church building itself was erected in 1844, the three previous churches on the site date back to an impressively old 1663. Apparently, according to the Staten Island Advance, "[t]he cemetery's decorative hand-carved stone grave markers – in brown and red sandstone – represent some of the oldest forms of sculpture and folk art in colonial America." [Photo via Forgotten NY.]

Despite the fact that Trinity Church's Financial District Location is on everyone's radar —including tourists' —fewer folks know about its awesome uptown outpost. The cemetery on Wall Street had reached capacity by the early 1800s (after 150 years of interments), so the all-powerful Trinity purchased land between Amsterdam Avenue and Riverside Drive and West 153rd and 155th streets, according to Forgotten NY. Many, many notables are buried here, including, most recently, Ed Koch. [Photo via Forgotten NY.]

Located in Hunt's Point, what's special about this slightly rougher park is that there's an out-of-the-way cemetery right in the middle of it. Inside the wrought-iron gates, you can spot names from prominent Bronx families, which are now street names. It also served as a slave burial ground. [Source: New Yorkers For Parks and NYC Park Advocates; photo via NYC Parks.]