Aabenraa is a city in Denmark located on the Jutland Peninsula. In 2017, it had a population of 16,153. It is the seat of the municipality of Aabenraa in Southern Denmark. The city is located 30 km north of Flensburg, on the fjord of the same name, in the eastern part of the Danish Schleswig.

- Brundlund Slot. A castle built as a fortress in the early 1500s. Already 100 years earlier, Queen Margrethe I began rebuilding the old medieval castle on this site. The castle was rebuilt many times. The current appearance with limed walls dates from 1805-1807. For centuries, the castle was the seat of the provincial governors. Today, it houses the Art Museum. The collection includes Danish painting, graphics and sculpture, mainly from after 1920.

- Church of St. Nicholas. Skt. Nicolai Kirke, in Romanesque-Gothic style, dates from around 1250. In 1641 the church was enlarged. An interesting feature in the church is the clock from 1744, which shows seconds, minutes, hours, days, months, years and phases of the moon.

- Slotsgade/Castle Street, is entirely built up with single-storey houses with adapted attics and windows onto the street and the yard. All the houses were built after the great city fire in 1707. The oldest houses still have a half-timbered construction.

- Vægterpladsen. The square of the City Guards, where their three houses stand. The city guards took care of order in the city.

- Aabenraa Museum. On the street H.P.Hansens Gade, a local museum, has collections of ship models, tools used for shipbuilding, and many interesting objects brought by sailors from the far world.
- Jacob Michelsens Gård. On Toften Street, a museum, the family manor of Jacob Michelsen. The residential house dates back to 1704. The manor is equipped with original furniture and tools that were used in the past.
- Art and Culture Railway Station. Banegården Kunst & Kultur, a historic building from 1865, has been a venue for temporary art exhibitions since 1993. Art exhibitions are presented here 7-8 times a year.