I would be remiss to discuss St. Augustine and omit the lighthouse. I'm not a lighthouse person, but I know many are. And I find this fascinating from the perspective of life on the "frontier" as it were. It was the first lighthouse established in Florida by the new, territorial, American Government in 1824. As you can imagine, there was not a whole lot there. The lighthouse keeper and his family had to farm and hunt to feed themselves. If memories serves the first few versions were of wood, kept by the Spanish. In 1824 the first coquina structure was established.
By 1870 beach erosion required a new tower. Construction began in 1871 and it stands as it was to this day.
Hall at the base of the lighthouse, where oil was kept to be carried to the top for burning. As you can see, quite a number of stairs. No need for fad workouts here.
The Keeper's House
Images from here, here, here, here, here