Zagreb, the capital of Croatia, is located inland in the north. Zagreb is a city with distinctive old and new divisions. It's not big enough to take steps to measure the land. The upper city on the west side is the imprint of history, slightly higher than the surrounding elevation, climbing along the steps of the city wall, the city's context is gradually clear in front of us. Medieval towers, nineteenth-century palaces, open-air markets, old St. Paul's church are intertwined, and the Gothic Zagreb Cathedral stands out between a red-roofed and white wall.