A Vertical Marathon… The winner, the man or women who scales the 61 storeys or 1,093 steps of one of Bangkok’s leading hotels the fastest. Taking place at the Banyan Tree Bangkok (an ideal setting a - slither of a building jutting out into the metropolitan skyline), the event raises money for the Thai Red Cross HIV Formula Feeding Fund, a charity under the patronage of Her Royal Highness Princess Soamsawali.