SPAIN: La Sagrada Familia is an enormous basilica in Barcelona, Spain, designed by architect Antoni Gaudí. Construction began in 1882, but was halted in 1936 initially because of the Spanish Civil War, and then later for myriad other reasons. The projected date of completion had been 2026, but is now postponed.
“The original [design] calls for 18 spires in total, representing the 12 Apostles, the four Evangelists, Mary and Jesus. So far, only eight spires have been completed and it is expected that when the building is complete, it will be the tallest church in the world.”Source
In my classroom, I covered an entire windowpane with high resolution images of the basilica, positioning them so that it encourages the viewer to look up, just like in a real cathedral. I also posted the Padre Nuestro in Spanish, which students learn in class.
Another year, third graders used glossy white paper, black Sharpies, rulers, and highlighters to create their own stained glass windows (as shown below; idea #8 on link HERE). They turned out really well and are easy to make, even for younger students.