Plaza Mayor, Salamanca

Often called the most beautiful square in Spain: a vast 18th-century baroque square of golden sandstone, enclosed by arcades and balconies, with medallions of kings and famous Spaniards carved above the arches. It's the living room of the city, full of café terraces and students.

It's even better at night, when it's lit up and glows gold, and the cafés fill. Salamanca was European Capital of Culture in 2002, and its old town is a UNESCO World Heritage Site; everything is close together and easy to walk. Café Novelty, on the square, has been open since 1905.