Looks like pretty standard construction for late 18th and 19th century brick foundations. The arched brick "tunnels" are crossed by walls that support the floor above. You can see a similar structure (although on a larger scale) exposed at Fort Pulaski, near Savannah Georgia. During the Civil War, a group of confederate soldiers used the "tunnels" formed by the arches in an escape attempt.
Knowledge,skill and experience are necessary qualities which one must aquire,but they are of little use unless accompanied by kindness,sympathy and understanding of human nature
Ok... now, for those of you that say there are no ghosts in here, please shut the fu*k up, because everytime i go into this building i get a small girl in a dingy dress, maybe age 8-10, and it happens EVERYTIME, the time before last, i was walking out and seen her walking by the entrance, than last time i went, we heard the laughter and the foot steps, but we stayed a few minutes longer because i was interested in somthing i found, so after i was done looking and getting my picture, we started walking out and we heard her cry a little bit, then she said "Good bye"... this is %100 true, i don't lie when it comes down to this kinda stuff, and not only that, but then i was going into the building to the left of the childrens building (the one with 3 floors that feel like they are going to cave in) we were entering the building with the steps in the back, that leads to the tunnels, and when we walked up, all the doors in the childrens building started slamming shut and open, i know it wasnt some kids or anything, cuz there was no lights or sounds or anything, and all the doors just started slamming, shit was intense, so to say the least, we fuckin took off like a bat out of hell, time i went after that was a daytime trip, i needed to recover after that shit, ya feel me.
I am 44. I grew up in Glenn Dale. When I was first born, we lived close to the hospital, at the USDA ste - next door. While the hospital was still open, my church childrens choir (including me) sang Christmas carols for the residents - this was after it became a hospital for the indigent. Some of them were scary to look at. Years later when I was a teenager, one of my high school classmates lived in one of the apartments. Her mom was a nurse there. I remember a party my classmate threw there and the only reason I was allowed to go was because her mom was a nurse. Mom wasn't there - but there was a lot of herb and sex - 1979. I had sex with my b/f once up at the water tower, during the day, in the tall grass. That was just up the hill from the bus stop on 450. I was so nervous because I thought someone would see us. Here's a coincidence - as an adult, I went to work in a tuberculosis clinic in the county Health Dept in 1981. Stayed there for five years. God, I feel old.