Walk down the streets of this Mexican marketplace, named for Agustin Olvera, the first county judge of Los Angeles. In the Avila Adobe, the oldest house in Los Angeles, you can see what life was like in Los Angeles around 1840 – kitchen, dining and living quarters (lovely canopied bed). At Sepulveda House (also the Visitor Center), get a taste of Los Angeles lifestyle at the end the 19th century. At the Firehouse Museum, check out the old-fashioned hoses and fire-fighting equipment.