La Brea Tar Pits Museum
Show your kids where Ice Age fossils come from by taking them to this fascinating outdoor park and indoor museum. Oil rises and bubbles to the earth's surface, as it is collected in shallow pools, and coagulated into asphalt. In the early 20th century, geologists discovered that all that goo contained the largest collection of Pleistocene (Ice Age) fossils ever found at one location. There are more than 600 fossils of species of birds, mammals, plants, reptiles, and insects. Roughly 100 tons of fossil bones have been removed in excavations during the last 100 years, making this one of the world's most famous fossil sites. You can see most of the pits through chain-link fences, and the Excavator Tour gets you as close as possible to the action.