The Spa at Four Seasons Hotel Philadelphia at Comcast Center

Perched on the 57th floor of the Four Seasons Hotel Philadelphia at Comcast Center, this spa trades on its height as much as its treatments. The infinity-edge pool and the floor-to-ceiling windows in the relaxation lounge both look out over the city, and that view is the main draw alongside the standard spa menu of massage, facials, body scrubs and prenatal treatments.

The treatment list runs to 11 options, with products from 111 SKIN, QMS, ISUN and Rossano Ferretti showing up across facials and the attached hair salon. The signature offering is Night Spa, a couples experience that includes private after-hours pool access, a massage on the pool deck, champagne, and gifts of robes and roses — aimed squarely at date nights or anniversaries rather than a quick visit.

For those not staying at the hotel, a day pass covers pool access from 10am to 8pm plus a treatment of choice and a welcome drink; the spa says to call ahead to check availability. There's also a Pamper and Pool option extending that access to up to two guests. A 24-hour fitness centre, nail and hair salon, and occasional extras like crystal sound baths or birthday massages round out the offerings.

It's open daily from 8am to 9pm, doesn't require a hotel stay, and welcomes both couples and families. Given the price tier and the setting, this reads as an occasion spa — the kind of place booked for a birthday, anniversary, or a deliberate splurge day, rather than a casual drop-in.