Situated in Østfold, Norway Founded in 1996 Price: $30 million* The Østfold Bridge is a feat of engineering. This graceful cable-stayed bridge, built in 1996 at a cost of $30 million, crosses the Glomma River to link the rural landscapes of Østfold County and the city of Sarpsborg. It is one of Norway's longest bridges, spanning 1,094 meters in total, and is an essential source of transportation for nearby companies and villages.