Prague astronomical clock
Leaning Tower of Pisa
Humans make mistakes, after all, no human is perfect. One mistake made in the 11th century resulted in a 14,500 ton leaning tower. This miscalculation would later become a symbol of civic pride, but tell that to the man who designed it! The learning tower of Pisa, known as Torre Pendente di Pisa in Italian, is different than most medieval architecture. This particular section won't cover the highly advanced construction techniques that were used, it is important to mention how this tower's design is significant. The Leaning Tower is the third oldest building on Pisa's Piazza del Duomo (cathedral square), the Cathedral and Baptistry were first. Utilizing many columns and archs, this tower represents an advanced understanding of weight and load characteristics, showing the Italian architectures' knowledge. What the architect didn't account for however, was the base of the tower being built on a dense section of clay. Experts say the fam...
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