Roadkill is a huge problem for many cities, and to solve this crisis, Los Angeles decided to implement the world's largest wildlife bridge that will extend over US Highway 101, a 10-lane freeway. The animal overpass will connect various parts of the Santa Monica Moutain in order to protect mountain lions and other wildlife. The 10-lane highway restricted many animals from roaming as they would naturally, however, the green bridge will now allow mountain lions to socialize and mate, significantly increasing their odds of surviving as a species. The bridge has a budget of $87 million USD and recently entered the final design phase. If all goes to plan, the bridge should open by 2023. Well done, L.A!