In June 2014, Trang An Landscape Complex in Ninh Binh province was Vietnam's first heritage site recognized by UNESCO as a World Cultural and Natural Heritage Site. (Photo: Ninh Binh Newspaper)

Ninh Binh province has numerous beautiful and mysterious caves. (Photo: Tuan Pham/truyenhinhdulich.vn)

Home to 100 caves, Trang An is often referred to as inland Ha Long Bay. (Photo: baodautu.vn)

Thien Ha cave in Trang An (Photo: truyenhinhdulich.vn)

Foreigners visit caves by boat. (Photo: Minh Duc/VNA)

The Tran Temple is closely associated with the history of the capital of Dai Co Viet. (Photo: Minh Duc/VNA)

Bai Dinh Pagoda in Trang An Complex (Photo: baodautu.vn)

Celebrating the 10th anniversary of UNESCO’s recognition of Trang An Landscape Complex as a World Cultural and Natural Heritage Site, Ninh Binh province has organized a number of activities from January to September, 2024. (Photo: VOV)

A dragon boat procession during the Trang An Festival on April 26th, 2024 (Photo: Minh Duong/hanoimoi.vn)

Ninh Binh Tourism Week with the theme "Golden Color of Tam Coc" is scheduled to take place from May 25th to June 1st, 2024. (Photo: VOV)

Tam Coc wharf in Trang An (Photo: Le Viet Khanh/VOV)

The World Cultural and Natural Heritage Site (Photo: Xuan Lam/hanoimoi.vn)