The Spa at The Rittenhouse Hotel

"It is constantly improving and renovating, unveiling new large, light-filled and modern Park Suites in 2013, and welcoming a brand-new, expanded health club, spa, and salon in the spring of 2014"

"Not that there's any need to leave the premises: Go elliptical at the expansive fitness center, then melt into a rosemary-mint wrap at the 10,000-square-foot spa"

"Other amenities include an on-site salon and spa and a contemporary fitness center with sauna/steam services and a pool"

"The indoor pool and gorgeous spa are highlights, and the latter features a salon and sauna"

"The pet-friendly hotel sits in a modern building with spacious rooms overlooking historic Rittenhouse Square"