People opened to the public a glass slide on the side of LA's tallest building. It is fully enclosed and 305 meters above the streets.
People can sit on the slide and slide on it for 14 meters to an outdoor platform on the 69th floor. The glass is only 3 centimeters thick but it can withstand a hurricane and even a powerful earthquake.
Difficult words: enclosed (not open on any side), platform (an area, something where people can stand), withstand (resist, survive, live through).