Salamanca's Plaza Mayor at Night: Why Spain's Finest Square Is Best After Dark
Salamanca is built of a sandstone the locals call piedra de Villamayor, after the quarry village nearby. In daylight it's a warm cream. As the sun goes down it turns gold, and once the floodlights come on in the Plaza Mayor the whole square glows like the inside of a lantern.
The square was built between 1729 and 1755, designed by Alberto Churriguera and finished by his nephew Manuel de Larra Churriguera, with Andrés García de Quiñones adding the City Hall on the north side. Three storeys of balconies sit over a continuous arcade on all four sides, and the whole thing is almost square, almost symmetrical, almost too perfect. The old city around it has been a UNESCO World Heritage Site since 1988.
The photo below is the square around 10pm on an autumn evening. The arcades lit warm, the balconies gold against a black sky, a lamp post in the middle, and the plaza busy with people crossing, sitting and standing around in groups.

Why night is the time
Salamanca is a university town, and its square is the student meeting point. "See you under the clock" means the City Hall clock, and from early evening the plaza fills with people waiting for friends, families out for the paseo and groups heading for dinner. It stays busy until late, and in Spanish fashion that means very late.
The light does the rest. The stone holds the floodlights so evenly that the square looks almost unreal, and the arcades glow under the balconies. Photographers set up tripods; everyone else just stands in the middle and turns around slowly.
Take a seat at one of the café terraces under the arcades for a drink. The prices reflect the view, but one coffee or a caña buys you as long as you like.
Look closer
Above the arches on the arcades runs a series of stone medallions with portrait busts of Spanish kings and famous figures from the country's history. Some frames were left empty for future figures, and the choice of who gets one has caused arguments more than once. Find the empty ones and wonder who'll fill them.
Beyond the square
Salamanca is small and walkable, and its old town is a run of golden stone: the twin Old and New Cathedrals joined side by side, the university's plateresque façade with its famous hidden frog, and the Casa de las Conchas covered in carved scallop shells. Walk them by day. Come back to the Plaza Mayor at night.
More from the square and the city: Salamanca Nights in Plaza Mayor and Salamanca's Stone Faces: A Photo Essay in Five Frames on Travel Marketing.