Abyss - Abandoned Construction of Nuclear Power Plant. Inside an abandoned cooling tower. In a small neighborhood known as Monceau-sur-Sambre, within the Belgian town of Charleroi, sits an abandoned power station.
The Maunsell Sea Forts. During the Second World War, the British Royal Navy constructed a series of sea forts for an advanced line of defense against inbound air raids and potential sea invasions. Now abandoned.