original station building was demolished as part of the hotel downsizing, and the new station is now separated from the hotel by several Downtown Disney buildings, including ESPN Zone and the Rainforest Café. All of the vehicles found on Main Street, U.S.A., grouped together as the Main Street Vehicles attraction, were designed to accurately reflect turn-of-the-century vehicles, including a gauge tramway featuring horse-drawn streetcars, a double-decker bus, a fire engine, and an automobile. They are available for one-way rides along Main Street, U.S.A. The horse-drawn streetcars are also used by the park entertainment, including The Dapper Dans. The horseless carriages are modeled after cars built in 1903 and are two-cylinder, four-horsepower (3 kW) engines with manual transmission and steering. Walt Disney used to drive the fire engine around the park before it opened, and it has been used to host celebrity guests and in the parades. Most of the original main street vehicles were designed by Bob Gurr. From the late 1950s to 1968, Los Angeles Airways provided regularly scheduled helicopter passenger service between Disneyland and Los Angeles International Airport (LAX) and other cities in the area. The helicopters initially operated from Anaheim/Disneyland Heliport, located behind Tomorrowland. Service later moved, in 1960, to a new heliport north of the Disneyland Hotel. Arriving guests were transported to the Disneyland Hotel via tram. The service ended after two fatal crashes in 1968: The crash in Paramount, California, on May 22, 1968, killed 23 (the worst helicopter accident in aviation history at that time). The second crash in Compton, California, on August 14, 1968, killed 21. Effects on commercial aviation The United States Federal Aviation Administration has declared a zone of prohibited airspace around both Disneyland and some of the surrounding areas at Sleeping Beauty Castle. No aircraft, including recreational and commercial drones, are permitted to fly within this zone; this level is only shared with Walt Disney World, other pieces of critical infrastructure (military bases, Pantex) in the United States and whenever the President of the United States travels outside of Washington, D.C. Live entertainment In addition to the attractions, Disneyland provides live entertainment throughout the park. Most of the mentioned entertainment is not offered daily, but only on selected days of the week, or selected periods of the year. Many Disney characters can be found throughout the park, greeting visitors, interacting with children, and posing for photos. Some characters have specific