The secret of the castle made of more than 10,000 tons of stone built on a swamp that has not subsided for more than 100 years

An Trinh Bao, an ancient fortress built in the mountains of Vinh An County, Fujian Province since 1885, is the most massive civil architecture in Fujian Province. The fortress was built by a landlord family for the purpose of preventing robbers, but for more than a hundred years, no one has lived there. The building covers an area of ​​10,000 square meters, 2/3 of the wall is made of stone with the base more than 4 meters thick.

An Trinh Bao structure. ( Photo: Baidu )

Inside the building are 360 ​​rooms, 12 kitchens, 5 water wells, can serve 1,000 people at the same time. The wall is more than 10 meters high, using nearly 10,000 tons of stone, located on the swamp but does not sink. The secret is the foundation is built with pine wood that has been dried and soaked in water. After drying and soaking, the pine wood becomes solid, effective against termites.

The foundation of An Trinh Bao was built with 18 layers of pine wood, compacting the soil and rocks, making the swamp soil solid. Another thing that made the castle famous was that it was located in the middle of a hot and humid mountainous area, uninhabited but without spider webs, while spider webs appeared everywhere on the surrounding houses.

Two paintings of fairy boys chasing spiders and catching bats in An Trinh Bao. ( Photo: Sohu )

Locals believe that two paintings in the castle are responsible for the absence of spiders. One depicts a fairy boy sweeping away cobwebs with a broom. The other depicts a fairy boy waving a banana leaf and sucking bats into a gourd.

Coincidentally, every year in the summer and autumn, many bats fly into An Trinh Bao. Bats will eat all the winged insects such as flies, mosquitoes... leaving the spiders with no food and unable to grow.

HONG PHUC (Source: Pear)

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Source: https://vtc.vn/bi-mat-ve-lau-dai-hon-10-000-tan-da-xay-tren-dam-lay-hon-100-nam-khong-sut-lun-ar784663.html