Diesel Fitness

Whether seeking a specific sweat session or looking for an intensive cardio overhaul, Diesel Fitness's classes, offered six days a week, cater to every exercising intent. Knead muscles and load biceps with Monday's Buns and Guns class, or sweat out stress with hot yoga on Wednesday evenings. Amenities at Diesel Fitness include a basketball court, an indoor track, free weights, a sauna, a racquetball court, and a cardio room with more than 30 pieces of equipment—one for each ripple in a bodybuilder's pectoral muscle. Diesel Fitness opens at 5 a.m. Monday through Friday, allowing roosters to get in a few bench-press reps before heading to work.