Sometimes it's all about the basics, and that's what the Twentieth Street Recreation Center does best. There's a lap pool, a basketball court with a manually rotating scoreboard, a weight room with just the necessities, and a nice set of ellipticals, treadmills and stair climbers that face soaring windows looking onto 20th Street. The center offers spin classes, pickleball, pottery studio sessions and aqua aerobics, but Twentieth Street's crowning achievement is its seventy-year-plus boxing program, which serves kids and adults of all skill levels. Built in 1908, the center retains a well-worn charm, from the beautiful banisters on its grand staircase to the tile floors, and natural sunlight pours into the historic structure. The gym's real secret? A knowledgeable, caring staff that greets you by name from behind a massive wooden desk. Old-school customer service from a truly old-school establishment.