Split is a major port city and seat of the Roman Catholic Archdiocese of Split-Makarska. There are also a couple of universities. The city's origins are attributed to the Diocletian's Palace. The city of Split, together with the Palace of Diocletian was declared in 1979 by UNESCO as a World Heritage Site.

The historic center of Trogir counts since 1997 as a World Heritage Site by UNESCO. The place is an outstanding example of urban continuity. The Roman city of Trogir located at the Adriatic Sea is not only one of the best preserved Romanesque-Gothic complex, but throughout Eastern Europe.

In 2008 the ancient agricultural plain east of Stari Grad was added to to the list of UNESCO World Heritage Sites. As a part of that is the historical old town that was created between the 16th and 19th century on the south side of the harbor.

The Croatian Krka National Park covers an area of 109.5 km² and within it the 45-kilometer stretch of the river Krka between Knin and Skradin and the lower reaches of the creek Čikola. The National Park was established in 1985.

The Cathedral of St. James (Croatian: Katedrala svetog Jakova) is the most important monument of Šibenik in the Croatian county Šibenik-Knin and the most important Renaissance castle in Dalmatia. The cathedral belongs to the list of World Heritage Sites by UNESCO.

The Kornati are the densest archipelago in the Mediterranean Sea and in 1980 it has been established as a National Park under strict conservation. The total area of this national park is 220 square kilometers of karst landscape.

The Paklenica National Park in the Velebit mountain range is located approx. 30 km northeast of the city of Zadar on the Croatian Adriatic Sea and about one kilometer from Starigrad-Paklenica. It was already declared in 1949 as a national park.

Because of the cultural significance and the centuries-long political special status, the city is often referred to as the "Pearl of the Adriatic" and "Croatian Athens". In 1979, the historic center was included in the list of world cultural heritage by the UNESCO.

The Plitvice Lakes were recorded in 1979 as one of the first natural monuments worldwide in the UNESCO World Heritage Site. The National Park counts about a million visitors annually. Admission is subject to charges and for the visitors apply strict rules of behavior.

Mljet is the southernmost and easternmost of the larger Adriatic islands of the Dalmatia region of Croatia. The National Park includes the western part of the island, Veliko jezero, Malo jezero, Soline Bay and a sea belt 500 m wide from the most prominent cape of Mljet covering an area of 54 km2. The central parts of the park are Veliko jezero with the Isle of St. Mary, Malo jezero and the villages of Goveđari, Polače and Pomena.

Built in the 6th century the church is one of the most important religious buildings in Croatia. Because they have hardly made changes in later times, it is one of the main references of late antique and early Byzantine art in the entire Adriatic region; In 1997, it was included in the UNESCO list of World Heritage Sites.