Dom Luís Bridge, Porto
The Dom Luís Bridge is a metal arch bridge that spans the Douro River between the cities of Porto and Vila Nova de Gaia in Portugal. At the time of construction its span of 172 m was the longest of its type in the world. It was amazing to read that this bridge was built over a period of 5 years, being completed in 1886.
Originally built to take road traffic on both decks, the top deck is now occupied by the Metro do Porto and a pedestrian walkway which is where the past couple of days photos were taken.