Things to Do: The Guggenheim Museum Bilbao. The Bilbao Fine Arts Museum for a collection of Spanish and European art. Landmarks include the iconic Zubizuri Bridge, designed by Santiago Calatrava.

If you prefer to stick to the classics, head to the Bilbao Fine Arts Museum, where the works of Goya, El Greco, Gaugin, and Gentileschi line the galleries. Travelers intrigued by Spanish history ...