Southernmost Queue.

The Southernmost Point Buoy is an anchored concrete buoy in Key West, Florida, marking the southernmost point in the continental United States, the lowest latitude land of contiguous North American States.
The large painted buoy was established as a tourist attraction in 1983 by the city at the corner of South Street and Whitehead Street. It is one of the most visited and photographed attractions in the United States with a queue of visitors stretching the block, the southernmost queue.