Apple Inc.'s  (AAPL) - Get Report $5 billion spaceship campus is almost ready to open its doors.

Videographer Matthew Roberts released drone footage on Monday that shows a nearly-finished Apple Park, the iPhone maker's new campus. Roberts has been tracking the progress of Apple Park since March 2016, but Apple's new Cupertino, Calif., headquarters has been under construction since 2013. Apple fans got a taste of the new campus last month, when the company held its iPhone X launch event at the Steve Jobs Theater, but attendees couldn't enter the main building.

The 175-acre campus' visitor center is now complete and it looks just as futuristic as the ring-shaped building that serves as the center of Apple Park. Trees and other landscaping are being planted and new paths have been paved. The company is also building private basketball and tennis courts, presumably for employees. 

More than 12,000 employees are supposed to move to the new campus and some of them began relocating there in April. Apple Park was envisioned by former CEO Steve Jobs as a place that would "transform miles of asphalt sprawl into a haven of green space in the heart of" California's Santa Clara Valley, the company said. The campus also features two miles of walking and running paths, an orchard with apricot, apple, plum and cherry trees, as well as a meadow and pond inside the ring's interior grounds.

Apple spared no expense when constructing Apple Park's main building, which some have called the "mothership" or spaceship. Apple said the ring-shaped building is 2.8 million square feet and is "clad entirely in the world's largest panels of curved glass." Employees can traverse a walkway that spans the building's three-quarter-mile perimeter, as well as enter a pair of sliding glass doors that weigh 440,000 pounds each, according to Wired. 

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The company also obsessed over small details like the facility's climate, embedding its floor and ceiling with tubes of water to set the temperature between 68 and 77 degrees. That decision was partly made to be in line with the company's wider focus on environmental issues, which Lisa Jackson, Apple's vice president of environment, recently gave a glimpse into. Jackson said Apple has a responsibility to care about sustainability and environmental justice, so it has made changes to certain products to reflect that. 

The office walls in Apple Park are made of recycled wood, while the building's roof is made entirely of solar panels that can generate 17 megawatts of power.

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