Seven Wonders of Croatia in Pula Arena (Amphitheater)The Pula Arena is an amphitheater built by the Romans between 27-68 AD, It is the best ancient preserved monument in the country. It is one of the six largest remaining Roman arenas.Plitvice Lakes and WaterfallsPlitvice Lakes is the largest national park in the country and the oldest national park in Southeastern Europe. It extends across 73,350 acres (296.8 sq km). It was one of the first natural UNESCO World Heritage sites.Church of King Christ (Mirogoj Cemetery)Church of King Christ is the anchor of Mirogoj Cemetery. Catholic, Orthodox, Muslim, Jewish, Protestant, and Latter Day Saints all use the cemetery. It was founded in 1876.Trsat CastleTrsat Castle is a castle named after the city that was reconstructed in the 19th century. It now is a monument for tourist to visit.Dubrovnik Archipelago (Elaphiti Islands)Dubrovnik Archipelago or Elaphiti Islands extend across 12 square miles (30 sq km). They feature an abundance of Mediterranean evergreen vegetation and pristine beaches.Diocletian's PalaceThe Romans constructed Diocletian’s Palace in the fourth century. It resembles more of a fortress and is rather large for a palace. It was intended as a retirement place for Diocletian.Walls of DubrovnikThe Walls of Dubrovnik are a collection of stone walls that served as defensive protection around the city. Construction began in the 7th century and featured 120 cannons and a moat in front of the walls.Zagreb CathedralZagreb Cathedral is a Roman Catholic cathedral and the tallest building in the country. It honors the Assumption of Mary. It features Gothic architectural style. It was constructed between 1880 and 1906.Sibenik Cathedral (St. James Cathedral)Sibenik Cathredral, also called the Cathedral of St. James, is a triple nave basilica. The dome reaches a height of 32 meters. It is a UNESCO World Heritage site. It is dedicated to Saint James the Greater.Veliki Tabor CastleVeliki Tabor Castle was originally a fortress . Today it is operated by the state and serves as a museum. It dates back to the 12th century. It encompasses 36,000 square feet (3,340 sq m).Vote