What does a church look like?

This is something I have been thinking about for a while.  I've got a number of ideas on the subject:

• The Non-Church Church.
• The Late Night Church
• Multi-site Churches, they are all the rage but how are they different from a denomination?
• Church on the Internet
• Convenience Store Churches

These are some of the ideas I have had in a cute title and maybe I'll write some of these as well.  For now I want to ask what is a church?  There are many groups that call themselves churches.  The church I believe is undergoing come cultural changes and will continue to do so in order to make itself reach more people.

But many churches today all have a certain look.  They have a building or more than one building.  These buildings are all on a piece of property or sometimes more than one piece.  People drive or walk to the building come in to a large auditorium, they sing songs, listen to somebody speak and maybe... hopefully talk to a few people on the way back home.  People with many different beliefs all do the same thing.  You could walk in and participate and often it would take a while or maybe even weeks before you realize a church believes different than you do, or different than the last church you went to.

So would Peter or Paul walk into a church today and say, "this feels like church"?  Seems to me the way the church has become is far, far different than what their experience was.  Church has adapted to culture as well as enjoyed success.  The churches that are started in somebody's living room may feel more normal to the old Apostles.  Could also be that the Bible Studies that meet at coffee shops or restaurants or in a park would seem more "normal" for the experience of a couple thousand years ago. 

Even though many of us attend the modern church there are churches that meet on the beaches of Hawaii and Mexico.  There are churches that meet in movie theaters. 

So how far can you push the IDEA of church and have it still be ok?  Can you leave out the worship service?  Could you for that matter leave out the sermon and add a video sit-com?  Could you leave out the offering but charge admission?  Does a church have to operate as a Non-profit organization?  I've got some ideas but I hope to hear others. 

What does church LOOK like?