4. Dead Horse Bay in Brooklyn

Dead Horse Beach is littered with glass, trash and bones. Courtesy of Diana Huang

Yes, there really are dead horses buried in Dead Horse Beach, just off Dead Horse Bay and next to Floyd Bennett Field in Brooklyn. First used as a land dump from 1850 to 1930, the beach became the site of horse-rendering plants (basically a horse crematorium) from the 1850s to the 1910s. The beach is scattered with bits of old garbage and even some pieces of horse bone, a reminder of what’s hidden under the sand.