It's been a long few years, but Apple's $5 billion campus, with its famous "spaceship" building, is finally finished — mostly.

Earlier this month, Apple started inviting people to the new visitor center at Apple Park, the building's only space open to the public, which serves coffee and sells exclusive Apple swag. Employees started moving into the new campus earlier this year, and the pace is expected to pick up in the coming months.

The campus certainly looks finished. Thousands of trees have been planted, paths have been paved, and the building's roof has been covered in solar panels. There's only a bit of landscaping work still going on near the campus gym.

Image: Business Insider

Matthew Roberts, who has been diligently flying a drone over Apple Park for over a year to photograph it, has delivered the best look at the campus's finishing touches from the skies.

Take a look:

Here's Apple Park — and the distinctive, circular "spaceship" building — in Cupertino, California.

Image: Business Insider

This is a grand entrance to a big gathering area and cafe. Apple has rolled out the "green carpet" — grass.

Image: Business Insider

Security checkpoints are already in use around the campus.

Image: Business Insider

Part of the idea behind the building was blurring the lines between indoors and outdoors.

Image: Business Insider

There are groves of fruit trees planted in the interior of the "spaceship."

Image: Business Insider

And the central fountain is finally complete.

Image: Business Insider

Apple Park has one of the biggest solar roofs in the world. Solar panels at Apple Park will produce 17 megawatts to power 75% of the campus.

Image: Business Insider

Here's the visitor center that opened earlier this month. This is the only part of the campus open to the public. That roof deck looks nice.

Image: Business Insider

The landscaping around the campus' fitness center is unfinished.

Image: Business Insider

Apple Park is a landmark for sure.