Geography of Denmark capital Copenhagen on Zealand; Århus, Aalborg and Esbjerg in Jutland; and Odense on Funen. Denmark experiences a temperate climate. This means that the winters are mild and windy and the summers are cool. The local terrain is generally flat with a few gently rolling plains. The territory of Denmark includes the island of Bornholm in the Baltic Sea and the rest of metropolitan Denmark, but excludes the Faroe Islands and Greenland. Its position gives Denmark complete control of the Danish Straits (Skagerrak and Kattegat) linking the Baltic and North Seas. The country's natural resources include petroleum, natural gas, fish, salt,
Nordic round churches are only accessible by narrow passages and served the local people as a refuge against pirate raids. The other three Danish round churches are located in Jutland and on the islands of Funen and Zealand. They are united by their lack of strengthened outer walls. They have vaulted roofs which are supported by four central pillars and are referred to as "Absalon Round churches". The name derives from the archbishop Absalon of Lund, a member of the Zealand noble and ecclesiastical family of Hvide. All three structures have the same floor plan, which derives from the former round church of