This morning, Apple enthusiasts learned about the company's long-awaited iPhone X and a series of other products. Addicting gadgets aside, today's keynote also debuted the Foster + Partners–designed Steve Jobs Theater—the company's four-story, 1,000-seat underground auditorium located at the Apple Park headquarters in Cupertino, Calif.

The theater's entrance sits atop of the auditorium and is marked by a "20-foot-tall cylinder, 165 feet in diameter, supporting a metallic carbon-fiber roof," according to an Apple press release. The theater's interior features a spiraling staircase and two elevators leading to the event space below.

The tech giant opened its new 2.8 million-square-foot headquarters building to some 12,000 employees back in April. The campus, which runs entirely on renewable energy, sits on a former 5-million-square-foot asphalt and concrete–covered field that has been redesigned into a landscape of over "9,000 native and drought-resistant trees," according to the release.

At the iPhone's 10-year anniversary event, the company also revealed its upcoming retail openings, including its fully redesigned Fifth Avenue store in New York that will reopen next year. Apple also unveiled plans for restoring and reusing a number of historic buildings around the world, including Washington, D.C.'s Carnegie Library in Mount Vernon Square. After the company announced its new retail concept in April, Apple’s senior vice president of retail Angela Ahrendts announced today that the company now refers to its retail stores as "town squares," since they are becoming gathering places where everyone comes together.

Read more about Apple Park here and Re-watch the event here.