We are arriving in the UK from the U. S. on July 4. We have no tickets and are really not interested in trying for tickets, my wife just wants to find out if there is anything to see/experience at Wimbledon on the grounds- She is a fan and wanted to just be see the facility if there is anything to see without a ticket. Any thoughts on this?

you can't get on the grounds w/o a ticket . . . .

"<i>if there is anything to see without a ticket</i>" You can see the folks queueing for tickets in the

July 4th is the penultimate day of the championship and the Ladies' Singles final day. Only ground entry tickets are avaliable for queing, and you must be in the line at least overnight to have a chance. No tickets are available for show courts like Centre and No 1.
As stated, when you get to the venue, all you see is people waiting in line and tennis stars going in and out in courtesy cars provided by the club.

There's an outside chance that you might get into the grounds late in the day after the LS final has completed, and many ticket holders leave (after about 6pm). But there are no guarantees that this will succeed and it will still involve some queuing up.

How long are you in London? If you are still there the week after the championships have finished (week beginning 6th July), you might consider visiting the on-site Wimbledon Museum (http://aeltc2009.wimbledon.org/en_GB...eum/index.html)
which was extensively updated a couple of years ago. You can book in advance to go on a guided behind the scenes tour during your visit, which is very interesting. The tour varies a bit due to operational reasons (immediately after the championships, there will be a lot of clearing up/dis-assembling to do, so I'd wait a few days). They normally take you onto the stands of Centre Court, the TV studios, Press Conference room, and sometimes the player's gym and other "back stage" areas not normally accessible to the public.

Let's try that hyperlink again shall we:-

http://aeltc2009.wimbledon.org/en_GB...eum/index.html