Oude Kerk, Delft. The Oude Kerk, nicknamed Oude Jan and Scheve Jan, is a Gothic Protestant church in the old city center of Delft, the Netherlands.
Its most recognizable feature is a 75-meter-high brick tower that leans about two meters from the vertical. The Oude Kerk was founded as St. Bartholomew's Church in the year 1246, on the site of previous churches dating back up to two centuries earlier.
The layout followed that of a traditional basilica, with a nave flanked by two smaller aisles. The tower with its central spire and four corner turrets was added between 1325-50, and dominated the townscape for a century and a half until it was surpassed in height by the Nieuwe Kerk.
During its construction the foundations were not strong enough to support the building, and the church began to lean. As work continued, the builders tried to compensate for its lean on each layer of the tower, but to this day only the four turrets at the top are truly vertical.
It is possible that the course of the adjacent canal had to be shifted slightly to make room for the tower, leaving an unstable foundation that caused the tilt. By the end of the 14th century, expansion of the side aisles to the height of the nave transformed the building into a hall church, which was rededicated to St. Hippolytus. The church again took on a typical basilican cross-section with the construction of a higher nave between about 1425