Bringing a little bit of poignancy to your day at the beach.
Each cross/star/cresent is a US soldier. According to the exhibit if they had one for each Iraqi civilian dead it would covre the entire beach.
Back to the Future II tunnel where Biff and Marty fight over the Almanac
Also the entrance to Toon Town in Who Framed Roger Rabbit.
As you can see from this shot, it's much, much shorter than the movies suggest.