The impressive National Museum of Finland (or Suomen Kansallismuseo) looks a bit like a Gothic church with its stonework and tower. Built in 1916 and extensively renovated in 2000, the museum's rooms cover different periods of Finnish history. The Treasure Trove has coins, silver, weaponry, medals and jewelery. The Prehistory of Finland is a large, permanent exhibition of prehistory and archaeological finds. A Land and its People shows life in Finland before industrialization. The Realm covers the history of Finland in the 13th - 17th centuries when it was under Swedish rule and an independent duchy of the Russian empire. The permanent exhibition, "Suomi Finland 1900", explores 20th-century Finland and was opened in April 2012. There are also changing displays of church relics, ethnography and cultural exhibitions.
The superb frescoes on the ceiling arches (by Akseli Gallen-Kallela) depict scenes from the epic Kalevala, including one of the hero Väinämöinen plunging a stake into the giant pike. You can visit the cafeteria at the end of your day to rest and absorb what you've learned about the history of Finland.
The museum is only a 10-minute walk from the central railway station, and the bus terminal at Kamppi. Or catch tram 7A/7B, 4T or 10. Free entry on Fridays 4pm - 6pm.