this is the grand mosque of cordoba(with things like this you can just google "mosque with columns and red stripes" and go through the google image results until u find a picture like that and clock on the link and it will tell you what it is).
This site is important historically because it doesn’t simply belong to one religion. The site has been a religious one for millennia, and it hopped between them the whole time. In the 700’s the moors split the site into halves:one to belong to the Christians, another for the muslim.Even in todays religious climate this would be remarkable, imagine back then. The pluralism, however, did not last even a century. The church was destroyed and work on a great mosque began, the largest mosque in the kingdom aside from the Kaaba. It was completed in the late 10th century and then was taken back by the christians. On the artistic relevance, the building was built and expanded over 200 years, which allowed for many different styles of architecture to present itself. I don’t know much about it artistically so heres a link you can use to help https://www.khanacademy.org/humanities/ap-art-history/early-europe-and-colonial-americas/ap-art-islamic-world-medieval/a/the-great-mosque-of-cordoba