Turku Cathedral in the context of "Grave"

The Great Fire of Turku (Finnish: Turun palo; Swedish: Åbo brand; Russian: Пожар Або, romanized: Pozhar Abo) was a conflagration in the city of Turku in 1827. It is still the largest urban fire in the history of Finland and the Nordic countries. The city had faced several large fires before, including an especially devastating one in 1681.

Turku Castle (Finnish: Turun linna, Swedish: Åbo slott) is a medieval structure in the city of Turku, Finland. Together with Turku Cathedral, the castle is one of the oldest buildings still in use in Finland. It is also the largest surviving medieval building in Finland. It was founded in the late 13th century and stands on the banks of the Aura River. The castle served as a bastion and administrative center in the historical region of Finland until the early 19th century. It played a role in power struggles within Sweden and the Kalmar Union and stood sieges, with additional battles fought outside its walls. The castle was at its peak in the mid-16th century, during the reign of Duke John of Finland and Catherine Jagellon. It lost its status as an administrative center in the 17th century, after Per Brahe's period as governor-general of Finland came to an end. Turku Castle is Finland's most visited museum. Visitations reach well over 100,000 people annually. Some of the rooms in the castle are used for municipal functions.

The castle was the center of the historical province of Finland Proper, and the administrative center of all of Finland.

The Old Great Square (Finnish: Vanha Suurtori, Swedish: Gamla Stortorget) is a medieval market square located in the city centre of Turku, Finland. It is located in the II District in very close proximity to Turku Cathedral. The area was the administrative and commercial centre of Turku since the founding of the city in the 13th century up until the Great Fire of Turku.

Today, there are buildings alongside the Old Great Square, but only on the southern side because the blocks on the northern side changed to Porthaninpuisto after the fire. There are four historical buildings which the City of Turku restored for cultural use: the Brinkkala Mansion, Old Town Hall, Hjelt Mansion and Juselius Mansion. The buildings were mainly constructed after the fire and represent neoclassicism.