If you visit Florence, it is impossible not to marvel at the gigantic dome of the Cathedral of Santa Maria del Fiore. Which celebrated Renaissance architect broke the rules of the era by designing it without fixed scaffolding, using a revolutionary herringbone brick system?

The Gothic style left us with imposing cathedrals full of light and height throughout Europe. What brilliant structural innovation made it possible to transfer the weight of the roof outward, freeing up the walls to open the famous stained-glass windows?

Ethiopia is home to Lalibela, a complex of medieval churches designated as a UNESCO World Heritage Site. What makes its architecture completely unique and an absolute landmark for travelers?