The glass-and-steel tower at the L.A. Live building complex in Los Angeles is an imposing presence on the skyline as you approach city’s downtown from almost every direction but the north. The building is the first major new skyscraper in L.A. since 1992. Since it’s completion a few years ago, it has become an unmistakeable if unadventurous and uninspired part of L.A.’s architectural identity. Whatever people think of it, it’s a huge structure by skyscraper-shy L.A. standards. The building is home to the Ritz-Carlton Hotel, and at night its edges light up with strings of lights that outline the tower’s shape and dynamically change over time.