Ha Long Bay. Photo: hanoimoi.com.vn

According to Thetravel, Ha Long Bay’s green waters strewn with hundreds of jungle-capped limestone islets is one of the world's great geographical beauties. It's truly breathtaking, and waking up to that sight is an experience you’ll never forget. 

Cu Chi Tunnels. Photo: hanoimoi.com.vn

The Cu Chi tunnels 60 kilometers west of Ho Chi Minh City is a vast network of subterranean tunnels dug during the American war to allow communication between villages while evading enemy soldiers patrolling the region.