Kaffeehaus idea

Just started working on an idea that I've been having for a while that I'm still not sure whether I can turn into reality or not.

I've had a love affair with the concept of 17th and 18th century coffee houses and how they're a hot bed for new ideas, game playing and general creative thought (the wikipedia article covers it well: http://en.wikipedia.org/wiki/Coffeehouse) I'm really keen to do something along these lines, but wondering whether it should be an event, venue or what... We'll see if anything comes of it.