It's that time again: a look at how Apple Campus 2 is coming along.
Matthew Roberts, one of a few drone owners who has uploaded videos to YouTube each month showing the progress Apple (aapl) is making on its new headquarters, has published his latest May update. The drone flyover depicts a campus that is still far from complete, but it appears to be making progress quite rapidly.
In the flyover, the reel pictures construction workers hard at work, putting in the frames and solar panels that will ultimately power the facility. In addition, the last curve of the round Apple Campus 2 is being constructed to complete the circle. Glass and canopies are being mounted on both sides of the main building, and a "mountain of dirt" is now standing alongside the campus that's about as tall as the new headquarters itself.
Each month, Roberts, along with another videographer, Duncan Sinfeld, have been flying their drones over Apple's "spaceship" headquarters to showcase what's been done to this point. Both videographers use unmanned aerial vehicles with high-quality lenses to snap videos and stills of the construction's progress.
Get Data Sheet, Fortune’s technology newsletter.
When completed—a feat that looks awfully far off based on the drone flyovers—Apple's new campus will feature more than 7,000 trees, underground tunnels for parking, places for employees to eat and roam, and much more. In total, the facility will feature 2.8 million square feet of office space and house 12,000 employees. It'll also have 700,00 square feet of solar panels.
While the design was finalized by architectural firms, it was the brainchild of Apple co-founder Steve Jobs, who pitched the idea to Cupertino, Calif. government officials before his death in 2011.
In addition to the main attraction—the new campus' spaceship building—Apple's plans call for a 1,000-seat auditorium and 100,000-square-foot fitness center.
Roberts kicked off his flyover by checking out the progress on those two facilities. He notes in the video that the auditorium is "progressing rapidly," highlighting workers actively putting together the massive fitness center.
The Roberts video, which also hones in on several large cranes, work on the interior of the building, and much more, comes just days after renderings were published by the City of Cupertino on the shacks and storage buildings Apple plans to have on its massive campus. The renderings show that Apple has indeed designed all facets of its new campus, down to the maintenance sheds, which won't look out of place alongside its uniquely designed spaceship.
For more about the iPhone, watch:
For now, Apple still plans to start moving in next year, despite so much work needing to be done. It's unknown whether construction is on schedule, but the monthly drone flyovers from Roberts and Sinfeld suggest the work is moving along quite rapidly.