The Solkan Bridge is the longest stone bridge in the world. It is near Nova Gorica, a small town located in western Slovenia. The span is 85 meters long and crosses the Soca River as a railway bridge. It was completed in 1906, but was destroyed during World War I. It was rebuilt, with some modifications, in 1927.
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Anguilla anguilla - The European eel is catadromous; born in salt water, but living most of its life in fresh water. The life cycle of the eel starts in the Sargasso Sea, an area in the Western Atlantic Ocean, where it is born. It begins a three year journey to Europe by drifting across the Atlantic in a larva stage. When it reaches the other end of the Atlantic, the eel swims into the rivers and streams throughout Europe. It returns to the Sargasso Sea 6 to 20 years later to renew the cycle. European eels have a life span extending to 80 years.