Church of San Juan, Gothic church in Castrojeriz, Spain.

The Church of San Juan is a Gothic building with stone walls, pointed arches, and large windows that fill the interior with light. The space is divided by side aisles and chapels, creating a complex interior layout for worship and prayer.

The tower and cloister date from the early 13th century, as Vicente Lampérez established; the church was rebuilt in the early 16th century in Gothic style, keeping the 14th-century tower and re-roofing the cloister. It was declared a monument on 29 June 1990 by royal decree published in the BOE on 3 July 1990.

The cloister's Mudéjar ceiling is painted with ornaments and coats of arms of castles, lions and bands, a decorative programme a visitor can still make out on the beams and braces. The church keeps its role as a parish temple in Castrojeriz, at the western edge of the old town on the Camino de Santiago.

The church stands at the western edge of Castrojeriz, with the 14th-century tower at its feet. The Romanesque cloister, with its painted Mudejar wooden roof, is the part to look for. The building was declared a monument on 29 June 1990.

The tower and cloister predate the church: Vicente Lampérez dated them to the early 13th century, and they were kept when the building was rebuilt in the 16th century. The cloister's Mudéjar ceiling is painted with ornaments and shields of castles, lions and bands, a detail easy to miss from the nave.