SAN FRANCISCO (KPIX 5) — It took more than a dozen people to lift a San Francisco artist’s sculpture into the SFMOMA museum’s grand atrium Tuesday.

At 26 feet across, and with plenty of moving parts, it wasn’t an easy job.

The sculpture is a mobile by famed sculptor Alexander Calder, who graduated from Lowell High School in San Francisco.

The sculpture’s arrival means the museum’s three-year renovation is almost complete.

“We can feel we’re coming around that last corner. We can see the light at the end of the tunnel. We are going to be open for the public on May the 14th, welcoming the community of SF, and to the world,” Gary Garrels of SFMOMA said.

Tickets are now available online. Opening day is already sold out.