Go east from downtown along Jefferson Avenue parallel to the Detroit River and you will pass the bridge to Belle Isle, one of the world's great urban parks. The Grosse Pointe area boasts mansions of auto executives and scenic Lakeshore Drive. The nondescript suburbs of Macomb County include some items of interest: The Macomb Center for the Performing Arts, the General Motors Tech Center in Warren, and Metropolitan Beach on Lake St. Clair.