After what has felt like an eternal renovation, today marks the much-anticipated return of Dolores Park's north side! Since early 2014, you've probably walked by the fenced-off area and wondered, What exactly are they doing over there? Thanks to my coworker Robert Chehoski, who created a time-lapse of the revamp using photos he took from his apartment, we now get a front row seat to witness the $8 million transformation (and some pretty impressive cloud formations and rainbows too).

What started as a casual hobby became something more for Chehoski. "After the first few months, I became completely obsessed. Sometimes I’d rush home just to get a shot before it got dark. In the winter, I took pictures in the morning. When I was away from home, my partner Stu would take the pictures for me." Now that's dedication! Check out the finished product: