The cathedral has a length of almost 144,6 meters and at its widest point measures more than 86 meters (474 x 282 ft). The front façade is dominated by two 157 meters (515 ft) high towers. The exterior is beautifully decorated with plenty of statues, bar tracery, pinnacles, gargoyles and flying buttresses. The Cathedral's oldest doorway is the Petersportal, built between 1370 and 1380 and decorated with statues that were created by the Parler family.With interruptions, it took more than 600 years to build this amazing ecclesiastic structure, with building commencing in 1248 and finally ending in 1880. It is a UNESCO World Heritage Site, dubbed "an exceptional work of human creative genius." The cathedral is by far the city's most iconic landmark and attracts millions of visitors each year.