Ha Trai Communal House

The Ha Trai communal house - pagoda relic complex faces southwest and is situated on a spacious plot in the middle of the village, surrounded by a densely populated residential area, with a fertile alluvial flatland in front. This relic complex was founded around the Nguyen dynasty; Ha Trai Communal House is the place of worship for the Tutelary God La Lang Duong, titled La Duong Lam De Vu Great King, one of the generals who helped Dinh Bo Linh quell the rebellion of the 12 warlords in the 10th century. In addition, it also worships another Tutelary God, Duc An Cong, who is traditionally believed to always secretly bless the people with a peaceful life and good harvests.

Due to historical circumstances, Ha Trai Communal House was once destroyed to serve the scorched-earth resistance. In 2009, the communal house was restored in traditional architectural style. In front of the communal house there is an ancient well along with a screen and garden. The main items of the communal house include: the ceremonial gate, a great worship hall three bays wide with two wings, a central chamber three bays wide with two side sections, and a rear hall of 3 bays. Inside, the roof trusses are made in the style of upper gong and stacked beams with protruding eaves, and the truss sets are carved in the style of tie-beams with hidden columns, with simple decorative patterns.

Every year, the people of Ha Trai village organize the traditional festival from the 11th to the 12th day of the second lunar month to express gratitude for the merits of their predecessors. Offerings to the village Tutelary Gods include flowers, fruit, cakes, and savory offerings placed in turn at the rear hall, great worship hall, and central chamber. The savory offering part cannot lack a tray of sticky rice and a boiled pig's head. In addition to traditional rituals maintained for generations, within the festival there are also folk games such as tug of war, duck catching, and pot smashing.

During the resistance wars against the French and the Americans, the Ha Trai communal house - pagoda was a secret operating place for guerrilla forces and an evacuation point for the Air Defense - Air Force. At the rear hall on the east side of the communal house there is a secret bunker where revolutionary cadres were sheltered.

In 2015, the Ha Trai communal house - pagoda relic complex was ranked as a city-level historical relic.