Very rare countries in Europe to go without visa, or arrival visa for that matter. Serbia offers that that lies in the south east Europe’s Balkan Peninsula. With plateaus and mountains. Many Monuments, historic places/ towers and castles are the main attractions including the Belgrade Fortress, Denube river and Knez Mihailova among many others. Visa free 90 days.
Total round trip air fare from Kathmandu: $850-$900
Meals = $8
Drink and entertainment= $25
Good luck, with the more exploration of this country, from ‘Himalayan pen team.
Himalayan Pen deals on travel and life style activities ranging from Travel to nice places, Trekking to Himalayas to hiking around the hills, tasting exotic and Nepali good foods, helping to locate reasonably good hotels and places around the world (especially in home country Nepal).