Porkhov Fortress, Medieval stone fortress in Porkhov, Russia.

Porkhov Fortress is a stone defensive structure in Porkhov, Russia, featuring four towers with limestone walls up to 4.5 meters thick. The site contains two well-preserved towers and now houses a local history museum showing regional artifacts and period documents.

Alexander Nevsky built the original wooden fortress in 1239 as part of a strategic trade route between Novgorod and Pskov along the Shelon River. The structure was later rebuilt in stone and shaped regional defense systems for centuries to come.

The Church of the Virgin's Nativity stands within the fortress walls, showing the building style of medieval Novgorod. Visitors today can see how this religious structure shaped the local identity and artistic character of the region.

The fortress grounds are accessible for all visitors, with two towers that can be explored in detail. The on-site museum offers information about the local history and should be visited along with walking around the outer areas.

The fortress was the site of the first recorded mass artillery bombardment in Russian history during an eight-day siege in 1428. This event marked a turning point in military technology and showed for the first time the destructive power of artillery in Eastern Europe.