[3] A trade route connecting Silesia and Bohemia ran through the town, contributing to its development.
[3] In 1669 Polish King John II Casimir Vasa stopped in the town after his abdication.
In addition, there are several mineral water bottling plants, traditional paper works and a crystal jewellery producer.
Although the area was known for its healthy waters at least since the late Middle Ages, the spa was officially founded in 1769.
In addition, there is a number of facilities for balneotherapy located in Duszniki and an osteoporosis treatment centre.
Other significant places include the Saints Peter and Paul church, which contains a unique baroque, whale-stylized pulpit, and the Fryderyk Chopin Theatre, established in the place where in 1826, 16-year-old Fryderyk Chopin played his first concert outside of the Russian Partition of Poland and his first charity concert.