Inside the "Monumental" stadium where the hugely popular River Plate soccer teams plays, the Museo River is a must for sports fanatics. As expected, there are trophies, jerseys, and old photos but also lots of fancy technology to bring the exhibits covering the sport and team to life. It's more flashy and glitzy than the Boca Juniors museum, fittingly given the reputation that "River’s" fans have of being preppy snobs. If you’ve got tickets to a game, come early to explore the museum.