Østre kurtine is a historic building located in Halden. The building is part of the Fredriksten fortress complex, which was built in the 17th century. Østre kurtine has a central place in the fortress's defenses and is characterized by its brick construction and strategic location.
The building has undergone several restorations and maintenance work to preserve its historical value. Østre kurtine is an example of military architecture from its time and provides insight into the city's history and development. It attracts both local residents and visitors interested in cultural heritage and historical sites.