EXPOSITION PARK. Originally a farmers market, Exposition Park is now home to a variety of cultural and recreational centers, along with a lovely 7½ acre rose garden. Among the attractions are the Natural History Museum, California African-American Museum, LA Swimming Stadium, LA Memorial Coliseum, and California Science Center. Admission to the park and rose garden are free, and although area parking can be a challenge (and will cost $5-10), a visit is definitely worthwhile.