<Table> <Tr> <Th_colspan="2"> Leaning Tower of Pisa </Th> </Tr> <Tr> <Td_colspan="2"> Torre pendente di Pisa </Td> </Tr> <Tr> <Td_colspan="2"> Leaning Tower of Pisa </Td> </Tr> <Tr> <Th_colspan="2"> Basic information </Th> </Tr> <Tr> <Th> Location </Th> <Td> Pisa, Italy </Td> </Tr> <Tr> <Th> Geographic coordinates </Th> <Td> 43 ° 43 ′ 23" N 10 ° 23 ′ 47" E ﻿ / ﻿ 43.72306 ° N 10.39639 ° E ﻿ / 43.72306; 10.39639 Coordinates: 43 ° 43 ′ 23" N 10 ° 23 ′ 47" E ﻿ / ﻿ 43.72306 ° N 10.39639 ° E ﻿ / 43.72306; 10.39639 </Td> </Tr> <Tr> <Th> Affiliation </Th> <Td> Roman Catholic </Td> </Tr> <Tr> <Th> Website </Th> <Td> www.opapisa.it </Td> </Tr> <Tr> <Th_colspan="2"> Architectural description </Th> </Tr> <Tr> <Th> Architect (s) </Th> <Td> Bonanno Pisano </Td> </Tr> <Tr> <Th> Architectural style </Th> <Td> Romanesque </Td> </Tr> <Tr> <Th> Groundbreaking </Th> <Td> 1173 </Td> </Tr> <Tr> <Th> Completed </Th> <Td> 1372 </Td> </Tr> <Tr> <Th_colspan="2"> Specifications </Th> </Tr> <Tr> <Th> Height (max) </Th> <Td> 55.86 metres (183.3 ft) </Td> </Tr> <Tr> <Th> Materials </Th> <Td> <Ul> <Li> marble </Li> <Li> stone </Li> </Ul> </Td> </Tr> <Tr> <Td_colspan="2"> </Td> </Tr> <Tr> <Th_colspan="2"> UNESCO World Heritage Site </Th> </Tr> <Tr> <Th> Part of </Th> <Td> Piazza del Duomo, Pisa </Td> </Tr> <Tr> <Th> Criteria </Th> <Td> Cultural: i, ii, iv, vi </Td> </Tr> <Tr> <Th> Reference </Th> <Td> 395 </Td> </Tr> <Tr> <Th> Inscription </Th> <Td> 1987 (11th Session) </Td> </Tr> <Tr> <Td_colspan="2"> </Td> </Tr> </Table> <Tr> <Th_colspan="2"> Leaning Tower of Pisa </Th> </Tr>

When the leaning tower of pisa was built
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