SO/ Vienna

The 750-square-meter SO/ Spa is where you go to erase a long-haul flight or a night of too much Grüner Veltliner. It’s a hushed, clinical space in the best way possible. No bamboo fountains or pan-flute soundtracks here. You get two hammams, twin whirlpools, and a panoramic sauna that looks straight across the rooftops to St. Stephen's Cathedral. Use it. The contrast of sweating in a high-tech wooden box while staring at a 12th-century spire is pure Vienna. If you need more than steam, the menu covers everything from Himalayan salt massages to technical facials. There’s also a gym packed with enough Technogym gear to keep your routine on track, but the real draw is the relaxation area. Grab a robe, snag a tea, and watch the city move below you while you do absolutely nothing.

Head to the 18th floor. That’s the only advice you really need. Das LOFT is the hotel's crown jewel, capped by a ceiling that glows like a digital sunset. It’s easily one of the best spots in the city for a drink or a blow-out meal. The food is modern European, but the 360-degree view of the skyline is what you’re actually paying for. It’s spectacular at breakfast when the sun hits the Danube Canal. But it’s even better at night. The bar serves a lethal martini, and the crowd is a mix of well-dressed locals and global nomads. Skip the ground-floor cafes and come here to watch the Giant Ferris Wheel spin in the distance. This is the SO Vienna experience people talk about. It’s loud, it’s expensive, and it's worth every cent for the vantage point alone.

If you’re checking into one of the 26 suites, prepare for a lesson in 'less is more.' These rooms don't do clutter. The SO Lofty suites offer 80 square meters of soft grey tones and airiness. They feel like a private apartment for a very successful architect. Then there are the SO Black Suites. They are exactly what they sound like. Dark, moody, and clad in deep charcoal from floor to ceiling. It shouldn't work, but it does. The darkness makes the lights of the city outside pop like diamonds. If you have the budget, the 180-square-meter SO VIP Suite is the one to beat. You get a 270-degree view, a massive Hollywood bed, and a bathroom big enough to host a small party. It’s a masterclass in how SO/ Vienna rooms use the city as their primary decoration. Forget the heavy drapes of the Ringstraße. This is how you do modern luxury.