Located in present-day Russian city Kaliningrad, which until 1945 was in Germany with the name of Königsberg, Königsberg Cathedral is a Gothic building, baltic, located on an island (called in German Kneiphof) of the river Pregel and is a must for those who love art and culture and for those who go to visit this unique city which is Kaliningrad. The construction of the Cathedral began in 1333 and was completed in a relatively short time, about fifty years later, in 1380. Rich in history, the building has undergone several changes and additions even in recent times, such as the location of a clock in 1995, while between 1996 and 1998 it was rebuilt at the ceiling and large windows redone. Today, the cathedral contains two chapels, one Lutheran and Orthodox, and another is now home to many concerts. Among the various features of the cathedral is also worth noting that the mausoleum contains the tomb of Kant: Originally, the German philosopher was buried inside the building, but in 1880 the remains were placed in a new neo-Gothic chapel on the outside . In 1924, the bicentennial of the birth of Kant, the chapel was demolished and the mausoleum was built today.