The city woke up to becoming an extravagant art city when Frank Gehry got the right to create Guggenheim Museum in his own image. The man is crazy, but even better he do what he dreams. Together with street art tours, always check out if there is a Gehry house close to where you are wisiting. In Bilbao area the winery Marques de Riscal is also worth your visit!
There is also street art in the city. Some brand new, some political, some very famous. Enjoy: