La Brea Tar Pits and Museum

Visit the only Ice Age fossil site in the world that’s being actively excavated in the middle of a city! More than 100 excavations have been made at the Tar Pits since the early 1900s, and most of the fossils discovered here are housed in the museum at La Brea Tar Pits, at the center of the Tar Pits! The discoveries range in size from huge, extinct mammoths and sloths to “microfossils,” or tiny remains of plants and animals that give clues about how ancient ecosystems and climates changed.