The majestic Holy Cross Cathedral is not just the main church gracing Petrozavodsk, but also a unique historical and cultural monument from the mid-19th century. Located on the quiet grounds of the Zaretskoye Cemetery, it greets visitors with the austere lines of the Russo-Byzantine style, standing out against the city landscape with its five domes and white-stone walls. Russia is rich in spiritual shrines, and this cathedral is rightfully considered a gem of Karelian temple architecture.

The building has a cruciform shape, symbolizing the Greek cross, and is crowned by a massive central dome. A distinctive architectural feature is the four corner bell towers topped with elegant onion domes. The church walls are decorated with octagonal columns and decorative bands, giving the structure a look that is both solemn and harmonious. Inside the cathedral are three altars, the main one dedicated to the Exaltation of the Holy and Life-Giving Cross of the Lord.
Beyond its architectural value, the cathedral is the final resting place of several prominent figures. It houses the graves of Archbishop Benedict and Privy Councilor Konstantin Arsenyev, the tutor of Alexander II. Today, it is an active church with a special atmosphere of serenity, and its high rating among travelers confirms the significance of this site for everyone visiting Karelia.