Morro Fort was begun in 1539. It’s actually the second fort the Spanish built in Puerto Rico. It has lots of staircases and corridors and tiny entryways for soldiers to quickly get to their killing posts.
Pictures:
One of four sentries
Old cannon
Wider part of the fort
No Kyle don’t eat those!
The oldest part of the fort
A gutter, which was also wide enough for a man to crawl through
The inside of the main courtyard
The ocean