Belgrade Cruises, Serbia

Serbia’s up-and-coming capital is like several cities thrown into one. It’s got Berlin’s bohemian grit, New York’s wide-awake attitude and Prague’s historic architecture. Here, there are two riverbanks to roam along – one belonging to the Danube and the other to the Sava. They’re lined with splavovi – floating restaurants, bars and clubs, each with their own personality. Belgrade’s grand fortress sits near the water, too, surrounded by parkland and a zoo. It’s split into sections, with Austrian, Roman and Ottoman features all playing a part. St Sava Temple is the other head-turning piece of architecture around here. This domed Orthodox church is the second biggest of its kind in the world. In fact, it’s so big that it’s still under construction today.