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
Silver Line (San Diego Trolley) to enable usage of the Siemens S70 on the Orange and Blue Lines, as part of the Trolley Renewal Project. All the stations served by the Silver Line have been renovated as of Fall 2013, so no further disruptions of service on this line are expected. One of the future proposals for trolley expansion is to potentially extend the Silver Line from Downtown up towards Balboa Park and the Uptown communities. MTS began work in March 2011 on a study to evaluate the feasibility of reconnecting Balboa Park, the San Diego Zoo and Downtown San Diego through a fixed-guideway, electrified