Osaka Castle is the city's most famous landmark. It was originally built in 1583 by the order of Hideyoshi Toyotomi but suffered several destructions throughout history. Rebuilt in 1931 with the external appearance created by Hideyoshi Toyotomi, the Japanese Government designated the main tower as a Registered Tangible Cultural Property years later, in 1997.

The Långe Jan lighthouse — 'Tall John' — first cast its light over the Baltic waves on November 1, 1785. Rising from the craftsmanship of, perhaps, Russian prisoners of war, it stands as a beacon of history and maritime safety on Öland's southernmost point. Initially measuring a soaring 36 meters and requiring a 197-step ascent, it now proudly stretches to 41.6 meters, claiming the title of Sweden's loftiest lighthouse. Once cradling an open flame against the Nordic sky, Långe Jan has seen transformations from bare stone, borrowed from a bygone chapel, to a whitewashed pillar with a distinguishing black band. Surrounded by the thriving Ottenby bird station, Långe Jan's legacy is as enduring as the coastal winds, welcoming visitors each summer to scale its heights and embrace a panoramic sweep of sea and sky.

By the Cathedral of Saint John the Baptist, you can find the only cloister-cemetery in France that has been classified as a historical monument since 1910. Built in the beginning of the 14th century, it also has an ossuary and the current building consists of 4 galleries about 54 metres long each.