King Mongkut's Science Park is a triple buildings, consisting of the Phanthiwatit, Phanpinit Chantra and Daratassani Building. At the front of the buildings is an observatory which is a replica of the Chadchavarn Viangchan Observatory in Phetchaburi Province. It is a 7 storey building that the topmost floor is a viewpoint. Inside the building, there are exhibitions on astronomy, space and science along with the biography of the King Rama IV.