The Fitness Center at Wyndham Philadelphia Historic District
Wyndham Philadelphia Historic District's fitness center is recommended by professional travelers. Of the 5 professionals that we tracked, 2 acknowledged the fitness center, including Gayot and Oyster.
Wyndham Philadelphia Historic District 
Gayot
Oyster
Gayot "The rooftop sundeck and pool are popular during the summer months, and the fitness center is open year-round"
Oyster "There's also a decent gym and a rooftop pool, though the later is modest and only open seasonally"
