The second-largest extant Gothic rose window in the world

The east rose window of the Cathedral of Santa Maria of Palma, or La Seu, spans nearly 14 meters across and is the second-largest extant Gothic rose window in the world. This massive structure dominates the central nave of the cathedral, which is situated on the seashore of Palma, Mallorca, between the Royal Palace of La Almudaina and the Episcopal Palace of Mallorca.

The site of the cathedral was occupied by a mosque under Muslim rule. Construction on the cathedral began shortly after the reconquest of the island in 1229, and works continued into the 17th century. The last traces of the mosque disappeared as the cathedral began to take its current form in 1386. The bell tower was completed in 1498, roughly the same time as the completion of the cathedral's naves and their vaults.

In 1903, Antoni Gaudí began overseeing wide-ranging restoration works in the interior to bring liturgy closer to the people. His works included removing Baroque and Gothic altarpieces to emphasize the 13th-century Bishop's Chair and the tombs of Kings James II and James III of Mallorca. Gaudí and his collaborators ceased works in 1914 due to disputes with the local authorities.

The cathedral features three parallel naves with a nave height of 40 meters, making it the eighth-highest in the world. The pillars supporting the vaults are the narrowest in the world relative to the vault size, at a ratio of 1:12. Recent major works were completed between 2001 and 2006 by artist Miquel Barceló, who renovated the Chapel of Sant Pere and the Holy Sacrament with Italian ceramic and grisaille stained glass.

Sources: Wikipedia, OpenStreetMap, Wikidata, Wikimedia Commons