Dom Luís I Bridge
Portugal
A double-deck metal arch bridge over the Douro linking Porto and Vila Nova de Gaia, opened in 1886. Its 172 m span was the longest of its kind in the world when it was built.
Portugal
A double-deck metal arch bridge over the Douro linking Porto and Vila Nova de Gaia, opened in 1886. Its 172 m span was the longest of its kind in the world when it was built.