Environmentaland's Last Weekend in L.A.
The pop-up museum that is Environmentaland is going away after Wednesday. It's a nicely done and unique project by Global Inheritance. The interactive museum (or theme park, as they describe) has stuff like bikes that you pedal to create different kinds of energy, a design your own recycling bin area and a taste test that let's you see the difference between sustainable and regular food.
Find it at Hollywood and Highland. A $5 donation is suggested ($3 students and people who take public transportation).