How about Tianshui Dadiwan Museum? Are there any interesting places?

Dadiwan Site is located in Shaodian Village, Northeast Wuying Township, Qin 'an County, Tianshui City, which is 102 km away from Tianshui City. It is a cultural site in the early Neolithic period and the early, middle and late Yangshao culture. Dadiwan Site was announced as a provincial cultural relics protection unit after 1958, and excavation began in autumn of 1978, and was announced as a national key cultural relics protection unit in 1988.

Dadiwan Site is located in Shaodian Village, Northeast Wuying Township, Qin 'an County, Tianshui City, which is 102 km away from Tianshui City. Dadiwan Site was announced as a provincial cultural relics protection unit after 1958, and excavation began in autumn of 1978, and was announced as a national key cultural relics protection unit in 1988.

According to the data obtained from the excavation, the Dadiwan site is a relatively complete ancient cultural relic of the Neolithic Age in primitive society found in eastern Gansu, which is 4900-8 120 years ago. [ 1]

The site was first discovered in 1958. Since 1978, two large-scale excavations have been carried out, which resurfaced the site of 14752 square meters, which only accounts for 1.34% of the total site area. * * * Excavated 240 house sites, including 4 147 pottery and 65,438 stone tools (including jade) +093 1. It is worth mentioning that the architectural sites here are not only large in scale, but also complex in shape, which can be called "a living fossil" in the history of prehistoric architecture development in China. The building numbered F90 1 is the landmark building of Dadiwan, and it is the largest house with the highest technical level in prehistoric times in China. What is even more amazing is that in the main room of 130 square meters, the ground is paved with a kind of concrete similar to modern cement. According to research, its chemical composition and physical properties are equivalent to the strength of 100 cement mortar floor. Experts from China and Japan agree that this building material is the oldest concrete in the world. Under the concrete floor, a prototype building material similar to modern "synthetic lightweight aggregate" is also used, which can prevent moisture and keep warm and strengthen the foundation. This compound building, with a total area of 420 square meters, is the first of its kind in later generations.

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