Stockholm's old city dates back to the 13th century, deeply influenced by the Nordic German style. The medieval alleys and stone streets and ancient buildings in the city have been reverted to the city. Sweden has not had a war for 200 years. The old city has been preserved well. The streets near the river and the sea are even more charming. The squares that come to the city center are all properly decorated and boiling. The festive atmosphere is not lively and cheerful. The smell of food is mixed and fluttering in the air. Although the cold wind is cold, the heart is warm.