Unfinished building is Antoni Gaudí's Sagrada Família in Barcelona, a church that has been under construction since 1882, and that is now expected to be complete in 2026. There are numerous unfinished buildings that remain partially constructed in countries around the world, some of which can be used in their incomplete state but with others remaining as a mere shell. Some projects are intentionally left with an unfinished appearance, particularly the follies of the late 16th to 18th century. Some buildings are in a cycle of near-perpetual construction, with work lasting for decades or even centuries. Antoni Gaudí's Sagrada Família in Barcelona,
Sagrada Família narrow spiral staircase of over 300 steps. There is a posted caution for those with medical conditions. As of June 2017, on-line ticket purchase has been available. As of August 2010, there had been a service whereby visitors could buy an entry code either at Servicaixa ATM kiosks (part of "La Caixa") or online. During the peak season, May to October, reservation delays for entrance of up to a few days are not unusual. Construction on Sagrada Família is not supported by any government or official church sources. Private patrons funded the initial stages. Money from tickets purchased by tourists