This city is one of the oldest intellectual centers in Europe. Many of its buildings are over 600 years old. It is located on the Rhine River at the point where Germany, France, and Switzerland all meet. What city is this?

This Swiss city’s unique location is at the heart of its identity. Situated on a bend in the Rhine River, it occupies a special geographical point known as the Dreiländereck, or "Three Countries' Corner," where the borders of Switzerland, France, and Germany converge. This strategic position has made it a crucial hub for trade, transport, and cultural exchange for centuries, perfectly matching the clues in the question.

Beyond its geography, the city has a rich intellectual and architectural history. It is home to Switzerland's oldest university, founded in 1460, which attracted leading thinkers of the Renaissance, including the famed humanist Erasmus. This long history is visible in its beautifully preserved Old Town (Altstadt), where landmarks like the towering red sandstone Münster (cathedral) have stood for centuries. This legacy of learning and culture began long before the city's modern role as a global center for pharmaceuticals and the prestigious Art Basel fair.