Saint Mark’s Basilica the most important and Venice best representing building. Architectural Italo-Byzantine monument that captures people gazes since it was erected in around 1063. The basilica is adorned with marble and other precious stones, gold, and creations of craftsmen from various parts of the world; the dome inside covered in mosaics and the altar with stupendous sculptures to emphasize the power of the city of Venice is still working its magic. This is a must to see building not only in terms of Venice but really the world.