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A number of monuments commemorating the nearby 18th Base of the Bulgarian Air Force, which existed between 1951 and 1998. There's a Soviet-made MiG-21 jet fighter on a pylon, a radar antenna, a memorial list of dead pilots, and monuments to various 19th century Bulgarian revolutionaries.
First floor of a large angular 1970s building that it shares with other institutions and businesses (e.g. the city library), the entrance is on the north side, between a few shops. On the west façade there's a relief of the creators of the Cyrillic alphabet, surrounded by letters. Archaeological exhibits from the Stone Ages, classical Antiquity, and the Middle Ages, and then the history of Bulgaria until the late 19th century.
A 1927 war memorial dedicated to the Bulgarian soldiers who fell in the Liberation War, the Serbo-Bulgarian War, the two Balkan Wars, and World War I. Topped with a large sculpture of a soldier, with four smaller at the corners representing different branches: infantry, cavalry, artillery, officer corps.
Holy Spirit Fortress
The remains of a small, four-tower fortress that was built in the 2nd century CE, rebuilt several times and finally razed in the 14th century. Also known as the Holy Spirit Fortress, after the hill it's on, which in turn is named after a chapel built on the hill.
Обществена баня, Obshtestvena banya
Ornate, old building (facade mosaic says 1937), with separate wings and entrances for men and women.