While laying the foundation for a bar at Sofitel Legend Metropole Hanoi in 2011, construction workers uncover an air raid shelter constructed during the past war with the US

Flashlights and helmets are provided for visitors wanting to explore the bomb shelter

In 2013, the bunker receives a UNESCO Asia-Pacific Heritage Award for Cultural Heritage Conservation

View of foyer tunnel more than 2 metres long, 6 rooms with two entrances, one below the pool and one at the hotel centre

In 2013, the bunker receives a UNESCO Asia-Pacific Heritage Award for Cultural Heritage Conservation

When being found, items in the bunkers remain nearly untouched 

Measuring 40 square metres, the bomb shelter under the Sofitel Legend Metropole Hanoi is open to its guests

View of foyer tunnel more than 2 metres long, 6 rooms with two entrances, one below the pool and one at the hotel centre

Measuring 40 square metres, the bomb shelter under the Sofitel Legend Metropole Hanoi is open for free to its guests

Australian diplomat Bob Deveraux carves his autograph on the wall back in 1975

While laying the foundation for a bar at Hanoi’s Sofitel Legend Metropole Hotel in 2011, construction workers uncover an air raid shelter constructed during the past war with the US