Åland Islands

The ruins of a Russian imperial fortress on the island of Prästö in Åland, built in the 1830s and partially destroyed during the Crimean War in 1854, now preserved as a historic monument and nature reserve.

A medieval wooden church on the western coast of Åland, dating from the late 13th century and notable for its well-preserved painted wooden interior, including a notable medieval altarpiece.

A medieval stone fortress in the Sund municipality of Åland, dating from the 14th century and notable for its state of preservation and its role in the political history of the Nordic kingdoms.

The ruins of a medieval Franciscan monastery on the island of Kökar in the southern Åland archipelago, dating from the mid-15th century and set in a remote coastal landscape.

The capital and largest city of the Åland Islands, a Nordic archipelago in the Baltic Sea, built around a sheltered harbour and known for its wooden tsar-era architecture and maritime heritage.

A bird sanctuary on the remote islet of Signilskär at the southern edge of the Åland archipelago, marking the border between the Gulf of Bothnia and the open Baltic Sea, known for migratory seabirds and coastal flora.