Valletta, the capital of Malta, is a city of two halves. Below ground, a network of tunnels and rooms tells the story of an island that’s always had to fight for survival. These tunnels originally allowed people to store grain and gather water. But in World War II, they were repurposed – and expanded – to provide shelter as bombs were dropped over Malta. (Shockingly, Malta received more shells in one month than London received during the entire Blitz).

Underground Valletta takes you beneath the streets to explore these incredible shelters for yourself. Keep your eyes peeled for abandoned treasures, not to mention 1940s graffiti hiding on the walls...

Why a trip to Malta should be on every history fan's bucket list