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becauses he stupid .
When the cathedral in Florence was designed it was the hope that it would hold the cities population of 100,00 people. However, when the church was complete only 30,000 people fit inside.
It took 16 years to build the Brunelleschi Dome in Florence. He had two domes built, one inside the other to accomplish this feat.
Exeter Cathedral
The Cologne Cathedral in Colonge, Germany took 640 years to complete (1248-1880).
The Cathedral of Santa Eulalia was constructed through all of the 13th to the 15th centuries. The facade is from the 19th century.
The exact cost to build Notre Dame Cathedral is unknown, but it took almost 200-years to complete. Construction began in 1163 during the reign of Louis VII. The Cathedral is home to the Crown of Thorns, a fragment of the True Cross, and one of the Holy Nails, important relics of Catholicism.
No, the Americans took over the job and completed construction.
The groundbreaking was in 1401 and the consecration in 1507... so it took about 100 years to complete.
The demand for skilled construction workers is strong and likely to increase. According to the Construction Sector Council, the average construction worker is in their early 40s.
The precises instruction to the builder what kind of materials to be use and the exact method how to complete construction activities.
The government workers.