Phra Pathommachedi or Phra Pathom Chedi is a Buddhist stupa in Thailand. The stupa is located in the Wat Phra Pathommachedi Ratcha Wora Maha Wihan, a temple in the town center of Nakhon Pathom, Nakhon Pathom Province, Thailand. Phra Pathommachedi is one of the tallest stupas in the world. The top of its spire reaches 120.45 meters…Phra Pathommachedi or Phra Pathom Chedi is a Buddhist stupa in Thailand. The stupa is located in the Wat Phra Pathommachedi Ratcha Wora Maha Wihan, a temple in the town center of Nakhon Pathom, Nakhon Pathom Province, Thailand. Phra Pathommachedi is one of the tallest stupas in the world. The top of its spire reaches 120.45 meters, with the base circumference of 235.50 meters.