The building of the former Imperial Post Office was built from the funds coming from the French tribute after the Franco-Prussian War in 1883. The structure was built in the Neoclassicist style, featuring front facade with many pinnacles and a clock. The whole building is lined with glazed brick in three colors. The post office operated in Grudziądz as early as the 15th century, when the Municipal Council and affluent merchants took up the burden of maintaining messengers. Inns, which in the past served as trading posts, have survived in the suburbs to this day. The building preserves the only openwork staircase in Grudziądz leading to the remains of the tower and the wooden structure of the clock tower.
