Cooperstown is only a mile or so up the road from Bowerstown. And that is where you'll find the National Baseball Hall of Fame and Museum.
The premises are open from 9am to at least 5pm daily. Adult tickets used to be $10 but now they are $14; school kids are $5; pre-school are free. Often the schools can get group rates and coupons so check in your community (USA school system) for opportunities.
Also most of the place is wheelchair accessible. The Museum does have wheelchairs available to loan to patrons and they are available on a first come-first serve basis. No reservations are accepted.
Parking right at the building is extremely limited. Most people park in the village of Cooperstown and take one of the frequent trolleys out to the museum and back. See the website below for details.
When you get inside, it will probably be crowded if you go during the summer months, so be prepared to wait in lines to see some of the more popular exhibits. But there is plenty to do.
The main floor has the theatre where there is a recurring movie about baseball and baseball greats; the gift shop and book store, both of which are large; the research library; the start of the individual exhibits for each hall of fame person. There also is a kids play area at the very back of the first floor.
The second floor (stairs and elevator) has main exhibits about the game and souveniers and the most famous persons (like Babe Ruth).
The top floor has special event exhibits and memorials to persons who contributed to the museum and displays of oldtime docments.
If you love baseball, you'll love this place.
(they ask that you do not use flash camera because of the harm that the flash does to some of the document displays... so getting good pictures inside may be difficult. but they do sell a nice set of commercial pictures in the gift shop.)