Megalithic culture, including Dolmens, is distributed almost all over the world, including Northern Europe, Western Europe, the Mediterranean region, India, Southeast Asia, and Northeast Asia. All of Europe's megalithic cultures are concentrated along the east coast of the Atlantic Ocean. In Northern Europe, Dolmens are found in the Baltic Sea, from southern Sweden to Denmark, northern Netherlands, and Germany. The culture of Dolmens and megaliths in Western Europe extends from France to Portugal and Spain to the south and to England and Ireland to the west.

The megalithic culture of the Mediterranean coast exists everywhere, including Corsica and Sardinia, Provence in southern France, the southeastern peninsula of Italy, Algeria in northern Africa, and Syria in the Mediterranean Sea. And the Dolmens of the Black Sea coast are concentrated in the Caucasus region of Russia. In Asia, they are mainly found in regions located near the Indian and Pacific Oceans, such as India, Indonesia, Vietnam, Taiwan, China, Japan and Korea.

In Northeast Asia, Dolmens are distributed in Korea, northwestern Kyushu in Japan, and Zhejiang and Liaoning in China. The number of Dolmens distributed in China is about 50 units in Zhejiang Province and about 700 units in Liaoning Province. Japanese Dolmens are concentrated in Nagasaki, Saga, and Fukuoka prefectures in the Kyushu region close to Korea, and are estimated to be about 600 units. Unlike Korea, Japanese Dolmens are characterized by their overall size being very small, with the largest ones being about 2 to 3 meters tall and the smaller ones being around 1 meter. In the case of Japanese Dolmens, there is no table type, but there are many base type miniatures with supporting stones under a small cover stone.