THE VAULT Spa & Suites

THE VAULT Spa & Suites sits inside the Steigenberger Icon Europäischer Hof, occupying 1,300 square meters within the walls of what used to be a bank vault. The space includes a vitality pool, a handful of saunas, a steam room, relaxation lounges and a fitness area that stays open around the clock, while the spa itself runs daily from 9am to 9pm.

Treatments lean on facial and body work using 111SKIN and 72k products, and the private spa suites can be booked individually for facials or body treatments away from the main floor — a setup that suits couples or anyone wanting a closed-door session. Day access runs €79, with couples treatments available alongside solo visits.

Once a month, on the last Wednesday, the spa stays open later for a themed evening called THE VAULT Sauna Escape, running 5pm to 8pm. It centers on two Aufguss sessions in the 90-degree sauna at 6pm and 7pm, with the rest of the spa open in between for cooling off or just sitting quietly. Wellness drinks and fresh fruit are included, and the evening costs €79 per person — the same as the standard day-pass rate, though it's a separate, scheduled event rather than general access.

The overall tone the hotel aims for is deliberately minimal: quiet, clean lines, few distractions. Reservations are required for the spa and its suites, and questions about treatments or the sauna evening go through the hotel's spa email contact.