The Fitness Center at The Jefferson Hotel
The fitness center at The Jefferson Hotel is recommended by travel writers. Of the 12 publications tracked on TripExpert, 2 mentioned the fitness center, like Gayot and Star Service.
The Jefferson Hotel 
Gayot
Star Service
Gayot "Additional facilities include a fully-equipped fitness center, an indoor pool with discreet outdoor sundeck and 18 meeting and event rooms"
Star Service "The indoor pool shimmers under a vaulted skylight ceiling and adjoins both a terrace and indoor fitness center with personal trainer on hand"
