Andorra has around forty Romanesque churches — an extraordinary density for a country this size. They survived because the valleys were poor and remote: nobody had the money to rebuild them in fashionable styles, so ninth- to twelfth-century stonework stayed exactly where it was.
Santa Coloma
Santa Coloma, on the southern edge of the capital, is the oldest, with parts dating to the ninth century. Its circular Lombard bell tower is unique in the country and instantly recognisable. Inside there was once a full painted apse by the Master of Santa Coloma; the originals were removed and sold in the twentieth century, and what you see now is a precise projection of the paintings back onto the curved wall — an unusual solution that works better than it sounds.
Sant Joan de Caselles
Above Canillo stands what many consider the finest of them: a twelfth-century church with a three-storey bell tower, a wooden porch and, inside, a remarkable stucco Christ in Majesty — the figure is modelled in relief on the wall, with the painted cross around it. Very few of these survive anywhere.
The rest of the circuit
Sant Miquel d'Engolasters sits alone above the capital with a tall, severe tower and a short walk up to the lake behind it. Sant Climent de Pal and Sant Serni de Nagol are smaller and set among terraced fields. In Ordino, Sant Corneli i Sant Cebrià holds one of the best baroque altarpieces in the Pyrenees, a later addition inside older walls.
Practical notes
Most of these churches are locked outside guided visit hours, and the schedule varies between summer and winter. It is worth checking with the tourist offices in Canillo or Andorra la Vella before driving up a valley, or joining one of the free guided visits that run in high season. Several of the original altar frontals and painted panels are in the Museu Nacional d'Art de Catalunya in Barcelona rather than in Andorra, a source of long-standing local irritation.
If you have one afternoon, the pairing that gives the clearest picture is Santa Coloma for its tower and Sant Joan de Caselles for its interior — twenty minutes apart by car, and between them they cover three centuries of building.
How to read them
Most of these buildings share a pattern: a single nave, a semicircular apse facing east, and a separate bell tower with paired arched windows in the Lombard manner, a style that arrived over the Pyrenees from northern Italy. The apse was almost always painted. Where the paintings have gone, the curve of bare stone is what remains of a scheme that would once have been the brightest thing for miles.