Girona

• Passeig de la Muralla lets kids walk the reconstructed medieval walls, with towers to climb and wide views over the rooftops
• Cathedral steps and nave featured as King's Landing in Game of Thrones; the nave is the widest Gothic one built
• Cases de l'Onyar are the painted riverside houses, best seen from the Pont de Sant Agustí bridge

Girona's walled old town climbs a hill above the Onyar river, where rows of houses painted ochre, red, and yellow line the water. Kids can walk the medieval ramparts on the Passeig de la Muralla, wind through the narrow lanes of the Jewish Call, and climb the 90 steps to the Cathedral, which has the widest Gothic nave in the world and stood in for King's Landing in Game of Thrones.