This earth floor is a pink circular building with eight arches. Four pillars, stained glass and decorative stairs represent the theme of this floor, "the kingdom of mankind". There is an ancient construction technique in Thailand. It is said to use white and pink gypsum as raw materials, mixed with sand and glutinous rice porridge, mixed with brown sugar and special glue to make white gypsum. As for the beautiful pink, it is a color formed by adding betel nut that Thai ancestors liked to eat.

The core information of this layer is expressed by 4 tin pillars, which represent the universal values explained and emphasized by the four religions, namely Theravada Buddhism, Hinduism, Mahayana Buddhism, and Christianity. Each tin pillar is octagonal and is wrapped by tin pieces. The tin pieces are cleverly beaten to show the required relief pattern and tell important religious stories and plot fragments. Religion is the pillar of peace and happiness. World peace is these religions The common goal is to teach us to treat each other in a friendly manner, while trying to maintain our own religion, while respecting the beliefs of others, so that we continue to have religion to cultivate peace and happiness in the world, which is why it is different The reason why religion, different denominations and different art forms blend together harmoniously.