The Octagonal gazebo represents another form of Thai architecture. The Sala may be used during certain Buddhist merit-making ceremonies such as the Songkran Festival, the traditional Thai New Year, when monks would be invited to receive offerings here. During other times, the pavilion serves as a summer house.
The Octagonal Sala at Ancient City is located on the way to Prasat Phanom Rung. It stands in the middle of Phlanchai Lagoon, from which the traveler can enjoy a clear view of Khao Phra Wihan or Preah Vihear.