Who knew it was so hard to find the entrance to a pedestrian bridge over a highway? Videographer Matt Toplikar and I saw this one over I-10 going west out of downtown Phoenix during rush hour and wanted to get a shot of the traffic. So easy, right? We ended up driving around for more than 30 minutes looking for the entrance to this one. It was an epic search. Pedestrian bridges over the highways of Phoenix turned out to be handy, and elusive, a couple more times during our journey through Phoenix. - Leila Navidi.