From home, there are several possible archaeological walking tours.
One (about 2 hours) takes you to Kalakoch, one of the highest hills in the Danube valley. Covered in mounds and scattered stone, it was once the site of a Thracian settlement. It is a wild monument, not laid out for public viewing, but this gives any visit here a sense of discovery.
After walking around the ruins, visit the nearby Thracian burial mound built during the Roman period for which there is a local legend about a princess.
The other walk (about an hour each way) takes you to Kovachavets Kale Roman Fort site. This site is laid out for visitors and includes a small museum.
These ruins were first recorded in the early 20th century by a Hungarian archaeologist, Karel Skorpil. They belong to a late Roman fortified station that sat on one of the main road between Nikopolis ad Istrum and the Roman town of Marcianapolis at Devnya, close to the Black Sea. The station was defended by huge stone walls and towers and two of the towers have survived partially intact. This area was close to the northern frontier of the Roman Empire that ran along the Danube and throughout the fourth and fifth centuries AD groups like the Goths and the Huns are known to have crossed the frontier and raided the towns and farms in this part of the empire. That is why the station was needed as a place where travellers could take refuge in case of trouble.