The A3 motorway is a major motorway in Croatia

Croatia

Croatia , officially the Republic of Croatia , is a unitary democratic parliamentary republic in Europe at the crossroads of the Mitteleuropa, the Balkans, and the Mediterranean. Its capital and largest city is Zagreb. The country is divided into 20 counties and the city of Zagreb. Croatia covers ...

 spanning 306.5 kilometres (190.5 mi). The motorway connects Zagreb

Zagreb

Zagreb is the capital and the largest city of the Republic of Croatia. It is in the northwest of the country, along the Sava river, at the southern slopes of the Medvednica mountain. Zagreb lies at an elevation of approximately above sea level. According to the last official census, Zagreb's city...

, the nation's capital, to the Slavonia

Slavonia

Slavonia is a geographical and historical region in eastern Croatia...

 region and a number of cities along the Sava River. It represents a major east–west transportation corridor in Croatia and a significant part of the Pan-European Corridor X, serving as a transit route between the European Union

European Union

The European Union is an economic and political union of 27 independent member states which are located primarily in Europe. The EU traces its origins from the European Coal and Steel Community and the European Economic Community , formed by six countries in 1958...

 states and the Balkans

Balkans

The Balkans is a geopolitical and cultural region of southeastern Europe...

. Apart from Zagreb, where the A3 motorway comprises a considerable part of the Zagreb bypass

Zagreb bypass

Zagreb bypass , is an U-shaped motorway partially encircling Zagreb, Croatia. The largest part by far, between Jankomir and Ivanja Reka interchanges, has been built between 1977 and 1979, while Ivanja Reka - Sveta Helena section has been built between 1996 and 1999. The bypass is long, tracing...

, the motorway runs near a number of significant Croatian cities.