San Pedro Springs Park is the oldest public park in Texas, and the second-oldest in the nation. Established in 1729 by King Philip of Spain, the park has had plenty of time to amass an interesting history, and you can find out more about the park here.
Probably one of the oddest features of San Pedro Springs Park is the "grotto", a strange heap of a building covered in moss and other growth. Here's a picture:
The origins of the grotto are unclear, and the structure is strange enough by itself. But, one day while strolling through the park, I noticed something a little peculiar about the low wall that surrounds the verdant pile. The wall is topped with shallow depressions that are vaguely crescent-shaped, and it took me a while to figure out their purpose, for I believe them to be more than mere decoration.
Take a look at these pictures I took, and see if you can figure out the purpose of the depressions.
Figured them out, yet?
Well, I'll let you know what I think they are, and see if you agree.
They're butt grooves.
Honestly, I think that's what they are. The wall is just the right height to squat down upon, and the depressions nicely conform to one's posterior when seated. Look again:
It's quite odd, don't you think?
Seriously, though, San Pedro Springs Park is one of the gems of San Antonio. You can read more about the place here and here. It's full of history, and it's quite beautiful, too. If you're new to town, I urge you to check it out sometime.