Abandoned city tunnels to be turned into major £120million tourist attraction with underground bar
TUNNELS underneath the city of London that were built to be a WWII shelter are set to be transformed into an £120million ...
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Leonardo da Vinci’s Forgotten Sketch Leads to the Discovery of Secret Tunnels Beneath an Italian Castle
A 500-year-old sketch by Leonardo da Vinci has led to the remarkable discovery of hidden tunnels beneath Sforza Castle in ...