You have to cross this bridge when you're driving to downtown from East LA. It gives you an amazing view on the River, old industrial buildings and the high rises of downtown Los Angeles. Remember that famous scene from Grease? This is the place. I'm still trying to figure out how to get my car in here.
I had a studio in this neighborhood for 3 years. Just take your camera and spend a couple hours walking around admiring the colors and people and odd shops.