Step through. It's like a doorway in time. On the outside, there is modern-day San Antonio surrounding this quaint little fortress. Skyscrapers, hotels and the restaurants and bars of the Riverwalk are in every direction.
Here in the center is a place where legends were made even though the real story is that the fort was supposed to be shuttered, dismantled and abandoned.
Nevertheless the local commander, ignored his orders, held out for the best but got the worst along with his men. Nobody would be retiring and needing assisted living.