Catedral de Santa María la Real de la Almudena

The Cathedral of Santa María la Real de la Almudena, located in Madrid, is an absolutely beautiful building, showcasing some fascinating modern architecture. Despite its traditional look, the cathedral was only completed in 1993, with its construction starting way back in 1883. Inside, it features an interesting blend of bold stone pillars and vibrant colours and mosaics, making it a unique church interior. The dome offers fantastic panoramic views of Madrid, including the Royal Palace, making it worth the seven euro entrance fee, especially if you're interested in stunning viewpoints and modern church architecture.