Ronne, Bornholm, Denmark

Largely rebuilt after World War II, Rønne still feels historic because even the new buildings reflect the older architecture. As a result, walking from more modern areas into the charming Old Town (Gamle Stan) is less noticeable. Don’t miss the 14th-century St. Nicholas Church, one of the more iconic buildings on Bornholm Island, or the massive round-tower castle and its fascinating military museum in the south of the city. To better understand the island’s seafaring and natural history, explore Bornholm Museum.