6. Sleepy Hollow Lighthouse

Also known as Tarrytown Light or the Kingsland Point Light, the Sleepy Hollow Lighthouse sits on the east side of the Hudson River. Made of steel, the conical, five-story structure — done in a sparkplug-style — was built in the 1880s in order to steer ships away from the dangerous shoals near Tarrytown and Ossining.

The light itself was automated in the mid-1950s. It operated until 1961, when it was decommissioned following the construction of the Tappan Zee Bridge, whose lights rendered the lighthouse obsolete. Today, Sleep Hollow operates as a museum, which holds a keeper’s log and old photos.