- The Fortress of Suomenlinna (photo), an 18th century royal residence in Helsinki. Also one of Helsinki's top attractions.
- Old Rauma, one of the oldest harbors in Finland, located about an hour north of Turku.
- Petäjävesi Old Church with its unique architecture, in central Finland.
- Verla Groundwood and Board Mill is a historic industrial settlement east of Helsinki.
- The Bronze Age Burial Site of Sammallahdenmäki, dating back to the Bronze Age, located north of Turku.
- Part of the Struve Geodetic Arc.
Natural UNESCO World Heritage sites in Finland:
- The Kvarken Archipelago, over 5,000 idyllic islands in the Gulf of Bothnia.
