2. Fortress of Suomenlinna
Visit the fortress of Suomenlinna in the summer and be amazed. This breathtaking tourist attraction is found in the entrance to Helsinki’s harbor. Suomenlinna is a popular Finnish landmark because it breathes the history of the Baltic region. Built in the eighteenth century, the magnificent naval fortress of Suomenlinna is a UNESCO World Heritage Site. The fortress was erected to defend Sweden against Russia. It is a striking relic of European military infrastructure.