Have you ever heard of Park 101?

Park 101 is a vision for a 100-acre urban park serving downtown and adjacent neighborhoods such as Chinatown and Little Tokyo, all of which lack adequate open space. It would involve building a lid or cap above a portion of the Hollywood Freeway (U.S. 101) and its exit ramps. This proposal would incorporate nearby parking lots and underused land next to the freeway, and reconfigure the Civic Center area—converting an eyesore into an urban park and walkable, vibrant urban neighborhood