
The longest bridge in Europe is the Crimean Bridge (also known as the Kerch Strait Bridge). This bridge connects the Taman Peninsula of Russia with the Crimean Peninsula, which was annexed by Russia in 2014.
The Crimean Bridge is approximately 19 kilometers (11.8 miles) in length. It consists of both a road and rail bridge, making it a significant transportation link between the two peninsulas.
Please note that there might be new developments or construction projects after my last update, so it's a good idea to check more recent sources for the latest information on bridges in Europe.
Of the many different styles of bridges, generally suspension bridges are the longest, followed by cable-stayed, cantilever, and steel arch in that order.
Incidentally the highest bridge in Europe is the impressive Europabrucke in Austria Brenner Pass which at 820 meters long is 190 meters high. On weekends from 9:00 to 17:00 it’s even possible to legally bungy jump off the bridge. It would be closely followed by the Pont D’Artuby which is 182 meters high.