The Admiralty Church (Amiralitetskyrkan), also known as the Ulrica Pia, was inaugurated in 1685. It is made entirely of wood, making it Sweden's largest wooden church. Originally it could seat 4,000.
The interior is in a light bluish color while the exterior is in the traditional Falu red. Its shape is a squarish greek cross, with each cross arm measuring 20 metres. In front of the main entrance stands the wooden figure of Rosenbom. The church is part of the UNESCO World Heritage Site Karlskrona naval base since 1998.
References:The Church of St Donatus name refers to Donatus of Zadar, who began construction on this church in the 9th century and ended it on the northeastern part of the Roman forum. It is the largest Pre-Romanesque building in Croatia.
The beginning of the building of the church was placed to the second half of the 8th century, and it is supposed to have been completed in the 9th century. The Zadar bishop and diplomat Donat (8th and 9th centuries) is credited with the building of the church. He led the representations of the Dalmatian cities to Constantinople and Charles the Great, which is why this church bears slight resemblance to Charlemagne's court chapels, especially the one in Aachen, and also to the Basilica of San Vitale in Ravenna. It belongs to the Pre-Romanesque architectural period.
The circular church, formerly domed, is 27 m high and is characterised by simplicity and technical primitivism.