The Key West Lighthouse is located in Key West, Florida. It was completed in 1848. It was 50 feet (15 m) tall with 13 lamps in 21-inch (530 mm) reflectors, and stood on ground about 15 feet (4.6 m) above sea level. In 1858 the light received a third order Fresnel lens.
In 1873 the lantern was replaced (it had been damaged by a hurricane in 1866), adding three feet to the height of the tower. The growth of trees and taller buildings in Key West began to obscure the light, and in 1894 the tower was raised twenty feet, placing the light about 100 feet (30 m) above sea level.
After the Coast Guard decommissioned the Key West Light in 1969, it was turned over to Monroe County, which in turn leased it to the Key West Arts and Historical Society. The society operates the lighthouse and its associated buildings as the Key West Light House and Keeper's Quarters Museum.
Today, you can climb the 88 iron steps to the top of the tower for a scenic look at what the lighthouse keepers watched over for more than 120 years.