Relais & Chateaux Diepeschrather Mühle

25hours Hotel The Circle is like stepping into a nostalgic sci-fi film—it turns the bold circular shell of a 1960s insurance HQ into a vibrant retro-futuristic playground. Studio Aisslinger’s design uses concrete curves and colour-block décor to create a playful, immersive experience. The 207 rooms are full of quirky energy—think astronaut murals, vintage lighting, minimalist furniture and in-room Bluetooth speakers. Dining is equally inventive: the rooftop Monkey Bar serves cocktails ...

Ruby Ella brings showbiz glamour to Cologne’s hotel scene—it sits on the former TV studio site where iconic talk shows were filmed, and its interiors channel that 90s media energy with neon lights, vintage microphones, stage props and polished chrome. Rooms are compact yet calming, featuring oversized beds, hardwood floors, rainfall showers and soundproofing for peaceful sleep. Think “lean luxury”: everything feels fresh and efficient with thoughtful design extras like in-room Marshal...

Wasserturm Hotel Cologne is a delightfully inventive reinvention of a 19th-century water tower—once among Europe’s tallest—now reimagined as a stylish boutique landmark. Interiors by Andrée Putman blend exposed brick and industrial heritage with curvaceous Parisian Art‑Deco touches, warm woods and elegant furniture. Rooms follow the round floor plan, creating unexpected but inviting spaces—from cosy Aqua Deluxe to expansive duplex suites. The rooftop bar offers a 360-degree panoram...