Hidden on leafy Tran Phu Street in Hanoi's diplomatic district, Aira Boutique manages to feel wonderfully removed from the city's energy whilst keeping you within easy reach of the Old Quarter's legendary streets. The property gets the boutique formula just right – intimate enough for genuinely personal service but substantial enough for proper amenities like a panoramic sky bar, accomplished restaurant and spa that takes itself seriously. There's even an on-site tailor and infinity pool for those longer stays. Whether you're diving into Hanoi's street food scene or closing deals over cocktails, AIRA offers a polished retreat without the stuffiness that often comes with upscale city hotels.