A Random Chair

You're in a hotel in Chicago. You look at the elevator buttons, and one of the ones on the lower floors says "Art Hall."

It turns out to be part of their event space. You know, the place where people, companies, and organizations rent large rooms for meetings, small conferences, and maybe weddings. 

In this hotel, they have real art on display. One piece was this:

It's a Frank Gehry "wiggle chair," and they kindly ask you not to sit on it.