Leiden

Leiden claims the title of the Netherlands' oldest university city, with a 1575-founded institution that has produced 16 Nobel laureates, more than twice the output of the University of Groningen. The Hortus Botanicus, one of the world's oldest botanical gardens, houses a 400-year-old clivia collection that predates the theme parks of Maastricht by two centuries. For history buffs and academics, Leiden offers an unmatched concentration of intellectual heritage per square kilometer, with museum entry averaging €12, 25% cheaper than comparable cultural sites in Amsterdam.