This amazing rooftop bar is at the top of the Avani Riverside Hotel. I've been to many rooftop bars in Bangkok but this has got to be one of the most impressive and that's mainly because it's right on the Chao Phraya river but it also got a really cool upscale loungey vibe as well. At SEEN, expertly crafted cocktails prepared by renowned mixologists are paired with Portuguese-Brazilian cuisine made by celebrated chef Olivier da Costa. Each night is like a party with great music and tantalizing drinks converging in one of the hottest rooftop spots in Bangkok.