A paradise in the heart of downtown Bangkok, this particular branch of Oasis Spa takes you through a journey of pure bliss that begins with a stroll through lush greenery and a lily pad-dotted pond. Treatments are given ultra-luxurious tweaks, combining European and Thai approaches, and leaving you feeling like royalty. As if to prove a point, one of their signature treatments is called Queen of Oasis, which combines hot stone, Swedish and aromatherapy massages in two hours of blissful pampering.