We visited the museum on a chilly day in March, so didn't visit the 100 acres of outdoor sculptures and paths for wandering this time, but had done so in the past. There is a 35-acre lake adjacent to the nature park, so the vistas are very pleasant. The artwork can be touched and often invites the visitor to sit upon it or otherwise engage with it as well as just looking at it. Because many of the sculptures and art installations are temporary, there is always something new to see. The only complaint I have is that bikes are not allowed.
This museum, one of the oldest "encyclopedic" museums in the country, has a really nice and quite comprehensive collection. On our last visit I didn't get past the European and part of the American rooms in an hour and a half (although I have to admit being a slower museum visitor than many) and then spent some time in the 4thfloor Turner collection, which I hadn't seen before. This is one of the premier Turner collections anywhere. The museum always has several special small exhibits running in addition to its standing, rotating collection, with particular holdings in Asian (especially Japanese) and African art as well as textiles and fashion design. It is very much worth spending a half day or more here.