I live and work in Delft. One of the tourist attractions is the gothic Old Church, in Dutch: "Oude Kerk" or "Oude Jan".
The building of the church started in the 13th century.
An unstable foundation caused the 75-meter brick tower to lean about 2 meters from the vertical.
The tower resides a Bourdon bell of about 9,000 kg and with a diameter of 2.3 meters.
The Bourdon is only used excetionally such as the funeral of a member of the Dutch royal family.
The powerful chime of the Bourdon has such heavy vibrations and regular use could damage the tower or church.
The mausoleums of Piet Hein and Maarten Tromp are inside the church.
Piet Hein Dutch was a naval officer and folk hero during the Eighty Years' War with Spain.
Maarten Tromp was an admiral famous for his victories such as in the Spain-Dutch War.
Also the graves of the painter Johannes Vermeer and the scientist Anthony van Leeuwenhoek are in the church.
