They were first mentioned in 1233 in connection with events in a complaint to the Pope as the "Blood Bath," orchestrated by the Knights of the Teutonic Order, killing all Danes and piling their corpses at the church's altar. The church was founded in the early 13th century and consecrated in 1240 as the Roman Catholic Cathedral of Northern Estonia. It is likely that a school called the Cathedral School was opened at the church in the 13th century, first mentioned in 1319. The first reconstruction was done in the second half of the 13th century, and the building was converted into a basilica in the 14th century. The nave ceilings were finally completed in the early 15th century. Following the Reformation in 1561, it became a Lutheran cathedral. A fire in 1684 resulted in the loss of much of the building's decor and the tower over the central nave. In 1778-1779, the western tower was built in the Baroque style by architect K. L. Geist. In 1878, a modern organ crafted by F. Ladegast in Berlin was installed.
This is a relatively short and simple route that covers the most famous landmarks of the city. From the Viru Gates to the Town Hall Square, through the Pikk Jalg (Long Leg) street to the Upper Town, then descending to the Kiek in de Kök Tower and passing through the streets of the Old Town to the Northern Gates - the Fat Margaret Tower. Stories, legends, tales, beauty, and mysteries of the city.