Nestled deep within the Huong Dien Hydropower Reservoir area in Khe Trai (Huong Tra Ward, Hue City), the Tri-Thien-Hue Regional Party Committee’s tunnel complex was the headquarters of the Regional Party Committee and Hue City Party Committee. From this underground base, they directed all activities of the liberation forces before and after the 1968 Spring offensive. Today, the site stands as a striking historical relic amid a picturesque landscape of mountains, rivers, and sky.

After more than half a century with only foundations and traces remaining, the Thoai Thanh Temple area within the Emperor Gia Long Mausoleum relic complex now has the chance to be reconstructed.

With the goal of building environmentally friendly Green Transport infrastructure, in line with the overall economic development orientation of the province in the period 2021 - 2030, with a vision to 2050, on June 14, Hue Monuments Conservation Center and Gbike Co., Ltd. (South Korea) signed a cooperation agreement to implement a green transport project in the relic area to exploit and promote the values of Hue relics.