Binh Son Tower is located near Vinh Khanh Pagoda in Binh Son village, Lap Thach district, Vinh Yen province, 150 km from Hanoi. Built during the Ly-Tran dynasty, this 16-m tower has 11 floors, each with a curved roof. The tower is empty on the inside and located on a square platform.

The tower was built with solid red bricks and its foundations was built with Vo bricks. The surface of the fine Vo bricks is dark and has flower imprints. These features create an harmonious building style, suitable to different architectural trends.

The tower was restored in 1972 after a landslide caused the tower to sink to one side. Although the tower's foundations were raised 4 m higher than they were before the landslide, all the architectural attributes of the tower were kept intact.

Binh Son Tower is a unique architectural building of the Ly-Tran period that has been conserved in its original design.