Let's Explore The Abandoned Stockport Air Raid Shelter in Greater Manchester.. Stockport's abandoned air raid shelters are vast, subterranean tunnel networks carved into natural sandstone cliffs beneath the town. Built in 1938 to protect up to 6,500 people during World War II, the majority of these underground systems (such as Dodge Hill and Brinksway) remain abandoned, sealed off, and are strictly off-limits to the general public. #abandoned #stockport #airraidshelter #tunnels #manchester @🍒ch