Leiden – a university city (since 1575) in Netherlands, scientific centre with cultural heritage (e.g. Rembrandt, was born and educated here). Formed an artificial hill (today with the shell keep: the Burcht van Leiden) at the confluence of the rivers: Oude and Nieuwe Rijn (Old and New Rhine). The name of the city comes from Germanic and means “at the canals, a human-modified natural rivers”.
Leiden, “a key to discoveries”, hosts Leiden University (the oldest university of the Netherlands and one of the best universities in Europe, with thirteen Nobel Prize winners), Leiden University Medical Center, Leiden University of Applied Sciences.