There's nothing really to do here, but the building is so beautiful. You should definitely take a few minutes to walk through and observe the beautiful architecture. The Arcade was built in the 1800s as one of the first indoor shopping malls in America. There was a wedding going on when I was there, so I didn't get to see the downstairs. What an amazing venue this is to host a wedding! If you're in Cleveland, definitely walk through and admire the beauty.