Bilbao, a picturesque port city surrounded by mountains in northern Spain, is best known for its stunning Guggenheim Museum. Designed by Frank Gehry, the museum houses a rich collection of modern and contemporary art. Other museums worth visiting in the city include the Bilbao Fine Arts Museum and the Euskal Museoa Bilbao Basque Museum. The city's historic heart, Casco Viejo, is a charming spot filled with...