The Basilica's campanile was built from 1753 to 1786 by
Benedetto Alfieri, and rises to a height of 75 meters. Planning for the Basilica's most notable feature, its huge cupola, began fifty years later, once sufficient funds had been raised for the purpose by an increase in taxes.
Alessandro Antonelli was commissioned to design the cupola. The first design was submitted in 1841, and work commenced three years later. Much of the interior structure around the crossing had to be rebuilt to carry the cupola's projected weight, and the project had nothing to show in terms of height when it was interrupted due to the
First Italian War of Independence. In 1855, Antonelli submitted an even more ambitious plan than the original, increasing the cupola's projected height from 65 to 75 meters, and by 1858, funds had been mustered to continue works. However, architectural interventions by Antonelli caused costs to balloon to an unacceptable amount, and Antonelli was forced to submit a cheaper plan in 1861. By this time, most of the cupola had already been completed, but the battles over cost had prevented the dome from being built, and Antonelli devoted most of the next ten years to the
Mole Antonelliana in Turin. When he returned to the project in 1873, as an esteemed and elderly architect, he was given
carte blanche to complete the cupola. It was completed in 1887, and a statue of
Christ the Savior was hoisted to the top of the dome on 16 May of the same year. In the following years the church began to show signs of structural failure under the weight of the cupola, which was, moreover, already discernible during the early stages of construction. Starting in 1881, Antonelli therefore devoted himself to the consolidation of the four load-bearing pillars at the base of the dome and the expansion of the foundations. The work was completed in early 1887, just in time for the feast of the patron saint (January 22). Over the years there were frequent fears that the dome might collapse, and a major alarm in 1937 caused the monument to be closed for nearly 10 years. During this period reinforced concrete consolidation work was carried out by architect Arturo Danusso to avoid the prospect of the dome falling onto the city; however, recent reexamination of this work reveals that the reinforcement was unnecessary. In the case of structural failure, the dome would collapse in onto itself, rather than topple into the city. In recent years a series of sophisticated alarm systems have been installed inside the building to monitor any dangers of subsidence, cracks or oscillations. The building, which has become an icon and symbol of Novara, reaches a total height of 121 meters. ==See also==