55th floor, architecture, Asia, Bangkok, capital, Centara Grand, Chao Praya River, City, cocktails, dome, Drinks, dusk, Lebua St. Sirocco rooftop bar at Lebua hotel, Bangkok, Thailand. The sense of 'having arrived' at one of Bangkok's most iconic restaurants begins with the ascent to the 63rd floor and the walk down the artistically lit staircase, with the city below and the soothing strains of the jazz band resonating through the warm breeze. Sirocco is the world's largest all open-air restaurant and "Sky Bar", located on the 64th floor of the State Tower in Bangkok, Thailand, which is the second tallest building in Thailand. The 150-capacity restaurant opened its doors in the winter of 2003. Its main feature is a spectacular 270° panorama of the Chao Phraya river and Bangkok city. Sirocco was designed by global architectural and interior design firm, dwp | Design Worldwide Partnership with the design team led by Executive Director, Scott Whittaker. Sirocco serves Mediterranean food and has a live band every evening.