This ornamental archway is unique in that its east and west side walls have distinctly different looks. Named for its signature feature, the east side three-lobe patterned arch, known as a trefoil, it's also decorated with quatrefoils in round frames and bordered by four small circles. Its west side, by contrast, features a round archway and curved, rustic voussoirs, or wedge-shaped stones. Completed in 1862 carries the East Drive above and links pedestrians from Conservatory Water to the Lake and Bethesda Terrace.
East Site at 73rd Street between Bethesda Fountain and the Loeb Boathouse.