capital city of Montenegro
Rijeka Crnojevica is a small historical town in Central Montenegro on the ancient trading route through Montenegro. The city is very near the most beautiful part of Lake Skadar. It is worth visiting for both the lake and the old architecture left over from the trader days.
Take a bus from either Podgorica to Budva or vice versa. You will have to ask the driver to drop you off at the road. Tell the ticket collecting guy well ahead of time (using basic communications, hands & feat, etc.) and he'll be more than willing to drop you off on the main highway. From there start walking and hitch hike. It shouldn't take you too long to get picked up.
There are direct buses to Rijeka Crnojevica from the Podgorica main bus station but they may be hard to find and not run very often.
More information available on Wikivoyage