France Secret V2 factory in France A 5-meter-thick concrete dome protects the underground complex dug out by forced laborers in 1943 for the storage and launch of German V2 rockets.
Grand Est Nature, culture and fertilizer in Alsace In 1904, potassium deposits were discovered in French Alsace. Potassium, or potash, is one of the most essential nutrients for plants, together with nitrogen and phosphorus. That is why potash was brought out en masse to make fertilizer.
Germany Traces of the Westwall in Brander Wald In the run-up to the Second World War, Adolf Hitler ordered the construction of a defense line in the west of the country, the so-called West Wall. You will still find hundreds of meters of tank barriers in Aachen, Germany.
Grand Est Slate quarry Saint-Quentin in Rimogne With the closure of the Saint-Quentin headframe in 1971, slate mining in Rimogne, France, ended.
Hauts-de-France Useless V1 launch ramp During the Second World War, the German Air Force developed an unmanned flying bomb, the V1 (Vergeltungswaffe).
Northern Ireland Terminus at a fishing port Ardglass in Northern Ireland has traditionally been an important fishing port. The catch of the day consists mainly of herring, shrimps and whitefish.
Berlin Blown up bridge over the river Spree Hardly anything remains of the Brommy Bridge over the Spree today. In 1945, the bridge was blown up by the German army to prevent the Red Army's advance.
Germany Chemiewerk Rüdersdorf Chemiewerk Rüdersdorf was founded in 1899 as a cement factory near the city's lime quarries.
Bourgogne-Franche-Comté A Belgian Corbusier in Ronchamp Anyone on their way to the top of the Colline Notre-Dame du Haut in Ronchamp, France, to visit le Corbusier's chapel will come across another concrete gem at the foot of the mountain, namely the headframe of the Puits Sainte-Marie coal mine.
Six blast furnaces you can visit today In the early nineteenth century, the industrial revolution swept across continental Europe and one steelworks after another rose from the ground. Europe had hundreds of blast furnaces, but since the mid-twentieth century, Europe's steel industry has been slowly going downhill.