Built more than 250 years ago, Suomenlinna is a masterpiece designed by the master Okostin. It is very well preserved and is one of the largest military defense military missions in the world. It is of great significance. Finnish Fortress is located in the offshore of Helsinki. It is necessary to take a boat at the port. The port is an unmanned ticketing system. It needs to be purchased on the machine and it can be reached in about 20 minutes. On the island does not require tickets, it is open all year round, but the schedule varies slightly depending on the season. The island has churches, military camps, city gates and other monuments, so it is also one of Finland's most famous attractions, but some museums need to pay a certain amount of tickets, ranging from 5-15 euros, can be chosen according to personal preferences. The entire Suomenlinna has been listed on the World Heritage List by UNESCO and it is worth a look!