Balboa Park (San Diego) failed and is scheduled for completion in 2019. El Prado, a long, wide promenade and boulevard, runs through the park's center. Most of the buildings lining this street are in the Spanish Colonial Revival architecture style, a richly ornamented mixture of European Spanish architecture and the Spanish Colonial architecture of New Spain-Mexico. Along this boulevard are many of the park's museums and cultural attractions, including the San Diego Museum of Man, the San Diego Museum of Art, the Museum of Photographic Arts, the San Diego Art Institute, the San Diego Model Railroad Museum, the San Diego Natural History Museum, the
San Diego Zoo Safari Park the hospital is the Institute for Conservation Research, which holds the park's Frozen Zoo. Both the park and the San Diego Zoo are run by the Zoological Society of San Diego. The park is away from the zoo, at 15500 San Pasqual Valley Road, east of Escondido, California, along California State Route 78. Although the park is primarily within the San Diego city limits, it has an Escondido address. The San Diego Zoological Society became interested in developing the Wild Animal Park in 1964. The idea of the park began as a supplementary breeding facility for the San Diego Zoo,