This Basque city combines a heady mix of ancient roots and ultramodern sensibilities. If you like modern design, Bilbao’s got striking architecture—like Frank Gehry’s shiplike Guggenheim Museum, the soaring Isozaki towers and Calatrava’s glass-bottomed Zubizuri Bridge. If you seek older cultural highlights, there are historic buildings, traditional Basque cuisine and inviting cobblestone streets to explore. Outside Bilbao’s bustling center, there’s lots to discover. Find sweeping views and surprising meals—both traditional and avant-garde—waiting to be savored in hilltop communities. Learn about the Basques’ tragic history and promising future in Guernica, the city bombed by Fascist forces and immortalized by Picasso. Or spend a day in San Sebastián, exploring the historic center, the boardwalk and the curving bay, setting some time aside to sample the city's famous Michelin-star worthy cuisine.