I am curious about a mystery secret button:
It was found in a brick structure on the theatre side of the bridge on Preston st at the NW corner of the Wortham Theatre. You can walk inside this structure and on the left hand side there is/was a metal plate with a button. Several years ago I happened upon this thing and of course had to press the button. Down below in the bayou there was a big rumbling gurgling noise and then a fairly large surfacing of bubbles out in the middle of the water.
Does anyone happen to know what in the world this is? I think it was a really cool hidden surprise and enjoyed it. I have not been able to see if it still works but might be able to get over there at lunch this week and get a better picture.
I have included a screen grab from Google Street View buts its not too good.