At Wat Samphran (วัดสามพราน) in Nakhon Pathom Province there is a 17 storey building that has a giant dragon climbing to the roof. The head is at the top where there is a shrine and the tail is on the ground floor. The dragon is hollow and it is possible to walk up some sections of it.
Map showing location of Wat Samphran in Nakhon Pathom:
GPS Coordinates: 13.735295, 100.214892