House No. 12, built in the late 19th century, is a one-story wooden building with a mezzanine. This house was home to the revolutionary A.L. Teplov (1852-1920).

A.L. Teplov was born in the village of Argmakovo, which is now in the Belinsky district, to a priest's family. He studied at the St. Petersburg Technological Institute, and in 1875 he worked as a locksmith at the Penza-I railway station. For participating in revolutionary propaganda, he was arrested, and in 1878 he was sentenced to hard labor, which was commuted to exile in Siberia. From 1883 to 1887, he lived in Penza under police supervision, after which he emigrated to London. There, he founded a free library that became a meeting place for Russian revolutionaries. Upon returning to Russia, he lived in Penza, where he passed away between 1917 and 1920.