San Michele Arcangelo is a romanesque-style church in the city of Potenza. A church at the site is first documented in 1178, however, floor mosaics, likely from the 5th century, uncovered in the church suggest that a late Roman structure was likely here before then. As was common for many Lombard churches, it was dedicated to St Michael Archangel. The stone portal has a sculpted relief of the Madonna and Child with some Franciscan Order symbols.
References:Bomarsund fortress and garrison was built in 1832-1854 by Russian Empire to defence Åland Islands against enemies. British and French fleet attacked against it during the Crimean War in 1854. After a week of fighting the British stormed the remaining fort. Anglo-French forces destroyed it totally after battle. In the Treaty of Paris 1856, the entire Åland Islands were demilitarized, which is a status that has been preserved until this day.
Nowadays there are some ruins left and fortress area is open for visitors.