Offering classes, cardio, free weights and machines, Work Out World is a comprehensiive gym that is open daily, 24 hours a day. The 40,000-square-foot center is situated in the Market Place plaza, which offers plenty of parking. To cater to those with busy lifestyles and children, the fitness center provides an in-house day care service. Work Out World of Nashua has a direct association with the Work Out World facilities found throughout New England.