Serbia - one of world's the top 10 best in value destinations for 2020, according to Lonely Planet.
Here is what they say:
"What’s this? An authentic, characterful European country, rewarding slow exploration and barely discovered by travellers? Serbia can’t even be said to have been hiding away – its capital, Belgrade, has for centuries been one of the continent’s great crossroads. Today the city has laid-back cafe culture by day and budget-friendly partying by the Danube by night. And once you get out of Belgrade you’ll have most of the country’s delights to yourself. Outdoor adventures, spas and wineries, ancient monasteries and monolithic memorials from the Yugoslav era await."
Info: Lonely Planet