Rising from Castilla's northern plains, this beautifully simple treasure was built in the 9th century by refugee monks from Córdoba atop the remains of a Visigoth church dedicated to the Archangel Michael. Although little trace of the latter remains, the church is notable for its Islamic-inspired horseshoe arches, rarely seen so far north in Spain. The graceful exterior and its portico are balanced by the impressive marble columns within. The entrance dates from the 11th century.
To get here, take the N601 southeast of León. After about 14km, take the small LE213 to the east; the church is 16km after the turn-off.
