Iglesia de Santiago el Real

The Convent of La Merced is an old convent which, after successive uses and renovations, now serves as the autonomous parliament of La Rioja. The building dates back to the 13th century when it was erected as a monastery for the Order of Merced in the city. In the 16th century, the medieval base was completely renovated to its current appearance. Later, in 1685, a Baroque-style façade was added. Secularised after the disarmament of 1835, it was used for the rest of the 19th century successively as a barracks, a military hospital, warehouses and a prison until 1889 when a tobacco factory was installed. For this last use, the original building underwent major transformations. In 1978, it passed into the hands of the Logroño City Council.

This cathedral features two ornate towers, a clock with three faces, and an alcove adorned with sculptures. The church also houses panels painted by the Flemish painter, Gillis Coignet.

The Imperial Church of Santa María de Palacio was built between the 12th and 13th centuries, with the transept and choir being rebuilt in the 15th century. From the original structure, the eight-sided pyramidal dome in Gothic style in the shape of an imperial crown has been preserved, which is part of the city's skyline. In the 18th century, the structure was redesigned to strengthen the interior so that it could withstand the thrust of the pyramidal spire on the outside in the Baroque style.