Gibraltar Bunker, 268 Rte d'Albert, 80300 Pozières, France
Just opposite from the 1st Australian Division Memorial in Pozieres you will find a site with ruins from bunkers. The fierce battle of Pozieres took place in the area and just by watching the whole site you understand how ferocious it was
A walk on the beach at the location of Le Poulier will surprise you with a fallen bunker of the Atlantic Wall built built by the Nazis to prevent any invasion in Europe. Credit to @francesco_frakkio_raineri
Carrière Wellington, Rue Arthur Deletoille, 62000 Arras
Network of tunnels used by British army and Commonwealth forces during WWI. The museum opened in March 2008, commemorating the soldiers who built the tunnels and fought in the Battle of Arras in 1917. You will wear your WW1 helmet and you will have an amazing guide experience around the tunnels
Bois des 8 rues (sentier de mémoire), D138, Morbecque, France
German rocket site base built in 1943 served as a launch pad for V1 missiles targeting London and southern England. Full of craters as a result of Allied bombing in the area.