The Basílica i Temple Expiatori de la Sagrada Família ( Basilica and Expiatory Church of the Holy Family) is a Catholic Church in Barcelona, Spain designed by Antoni Gaudí (1852–1926).  Construction began in 1882 and continues today with an estimated completion date of 2026. I doubt there is a more remarkable stone masonry project going on in the world.  The video below shows the present and future of the Sagrada Familia. Very impressive.