Balboa Park (San Diego) an outdoor amphitheatre. The Casa Del Prado Theater is the home of San Diego Junior Theatre, the country's oldest children's theatre program. The House of Pacific Relations International Cottages collected on El Prado offer free entertainment shows. The Botanical Building, designed by Carleton Winslow, was the largest wood lath structure in the world when it was built in 1915 for the Panama-California Exposition. It contains large specimen palms and other plants and sits next to a long reflecting pool on the El Prado side. Located in the eastern third of the park is the Morley Field Sports Complex, which includes
San Diego Model Railroad Museum San Diego Model Railroad Museum The San Diego Model Railroad Museum is a model railroad exhibit in San Diego, California. At 27,000 sq. ft., it is the largest such indoor exhibit in North America, and one of the largest in the world. The museum is on the lower level of the Casa de Balboa Building on the Prado in Balboa Park. The museum is open Tuesday through Friday 10 AM - 4 PM, Saturday & Sunday 11 AM - 5 PM and is closed on Mondays. Nearly three million people have passed through the center since it opened in 1982.