Built by French Army more than 100 years ago, the biggest cannon station of the region at the time now turns the National Historic Site, which is reminiscent of the colonial era and attracts dozen of curious travelers to explore. Located 100m above sea level on the slope of Nui Lon (The Big Mountain, aka Tuong Ky – a 245m high mountain located in Vung Tau city, Ba Ria – Vung Tau province), the military complex was built in the late 19th century and completed in 1905, along with other “big gun” stations like Nui Nho (Small Mountain) and Cau Da. It is noted that the construction of the total…