1. Puerta del Sol: Join Madrid's Midnight Tradition
Sol is the city's classic midnight gathering spot, where the clock chimes cue the 12-grape tradition. It's a lively place to welcome the new year, but it is not a confirmed fireworks viewing site. The square has a stated capacity of 15,000, so expect crowds and arrive several hours early. Plaza Mayor and its Christmas market are nearby, while central hotel options include The Palace Hotel and Four Seasons Hotel Madrid.