Sofia, Rila Monastery, 7 Lakes, and Buzludzha
We did a free walking tour in Sofia and then an amazing food tour in the afternoon where we got to try local food and wine. We took a bus to Rila Monastery then started a multiple day road trip to Koprivshtitsa, then stayed overnight in Sapareva Banya to hike to the Seven Lakes. Drove to Plovdiv and then checked out Buzludzha, the former Bulgarian Communist Part headquarters shaped like a UFO.