The transport connections, concentration of industry, scientific, and research institutions and industrial tradition underlie its leading economic position in Croatia. Zagreb is the seat of the central government, administrative bodies, and almost all government ministries. Almost all of the largest Croatian companies, media, and scientific institutions have their headquarters in the city. Zagreb is the most important transport hub in Croatia where Central Europe, the Mediterranean and Southeast Europe meet, making the Zagreb area the centre of the road, rail and air networks of Croatia. It is a city known for its diverse economy, high quality of living, museums, sporting, and entertainment events. Its main branches of economy are high-tech industries and the service sector.