The Conch Tour Train is a very popular attraction in Key West.
Since 1958, this company has taken visitors on tours of the town. You will see Mallory Square, the Wrecker's Museum, the Aquarium, the Harry Truman Little White House, Mel Fisher's Maritime Heritage Society, and Southernmost House. You can hop off the train for in-depth visits to the attractions and hop back on when you are ready.
Enjoy listening to 400 years of the history of Key West. The conductors were friendly, cheerful, and well informed. It was not a busy day when I took the tour so I felt I got a little more attention and information than if it has been a crowded tour group.
The tour is about 90 minutes if you just stay on and listen, and it costs $26. Because I enjoy the history and architecture of the places that I choose for travel and vacation, I felt this tour was well done and worth it.