3D Paper Models: Buildings

Hogwarts Castle
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Hogwarts Castle was a large, seven-storey high building supported by magic, with a hundred and forty-two staircases throughout its many towers and turrets and very deep dungeons. The castle was built in the late Early Middle Ages (c. 993) by a wizard architect and the four most celebrated wizards of the age: Godric Gryffindor, Helga Hufflepuff, Rowena Ravenclaw and Salazar Slytherin. The castle was the main building of Hogwarts School of Witchcraft and Wizardry, regarded as the finest wizarding school in the world. Harry Potter Wiki

Germany Cologne Cathedral
Church of St. Peter
Cologne Cathedral (German: Kölner Dom, pronounced [ˌkœlnɐ ˈdoːm] ⓘ, officially Hohe Domkirche Sankt Petrus, English: Cathedral Church of Saint Peter) is a cathedral in Cologne, North Rhine-Westphalia belonging to the Catholic Church. It is the seat of the Archbishop of Cologne and of the administration of the Archdiocese of Cologne. It is a renowned monument of German Catholicism and Gothic architecture and was declared a World Heritage Site in 1996.[4][5] It is Germany’s most visited landmark, attracting an average of 6 million people a year.[6] At 157 m (515 ft), the cathedral is the tallest twin-spired church in the world, the second tallest church in Europe after Ulm Minster, and the third tallest church of any kind in the world. Wikipedia