Brilliant red Forth Bridge railway crossing, UNESCO World Heritage Site, at the Fírth of Forth in South Queensferry, near Edinburgh, Scotland, United Kingdom, Europe

Barragem do Alqueva, Rio Guadiana river, Alqueva dam hydroelectric power, Moura, Portugal, Europe

Forth Rail Bridge, built between 1883 and 1890, an achievement of Victorian engineering, Fife, West Lothian, Scotland, United Kingdom, Europe