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
Balboa Park (San Diego) to public recreational usage. No further activity took place until 1845, when a survey was done by Henry D. Fitch to map the 47,000 acres. Three years later, the Mexican government was forced by the Mexican–American War to cede Alta California, including San Diego, to the United States. On February 15, 1868, the city's Board of Trustees was asked to create a public park out of two plots of land just northeast of the growing urban center of "New Town"—present-day Downtown San Diego. The request was made by one of the Trustees, E. W. Morse, who had picked the site