Peter and Paul Cathedral was built in the classical style. The cathedral stands on a promontory, bounded by Gomel from the north - a deep ravine. Main facade of the cathedral faces the city. Cathedral, as the palace rises above the low-lying floodplain and is visible from a distance. In Soviet times the building was converted into a planetarium. In terms of the cathedral is in the form of an elongated cross with developed transept and nave shortened average. Sredokrestne crowned with a dome on a high drum penetrate windows. The combination of classical portico and dome volume - nostrum whole generation of architects. Four six-columned portico and a plurality of half-columns Doric building façades greater plasticity and yet austere simplicity. In a clear division of a volume, in balance and proportionality of the masses, of the severity and the noble simplicity of the architectural facades of the cathedral affected the characteristics of classical architecture in the beginning of XIX century.