Here are some of the Orthodox churches with colorful interiors comprising mosaics and frescoes.
Church of the Savior on Blood in Saint Petersburg, Russia
The construction of the Church of the Savior on Blood began at the behest of Alexander III in 1883, two years after the assassination of his father, Alexander II. Unlike other structures of Saint Petersburg during the time, the Church of the Savior on Blood was constructed in medieval Russian architectural style. The mosaics inside the church cover 7500 square meters of area, making the church an owner of one of the largest mosaics in the world.
Assumption Cathedral in Astana, Kazakhstan
Built between 2004 and 2006, Assumption Cathedral in Astana is the largest Orthodox Cathedral in Central Asia, reaching 68 meters in height.
Gelati Monastery in Georgia
Established in 1106, Gelati Monastery is a masterpiece of the Golden Age medieval Georgian architecture. It is also one of the largest medieval Orthodox monasteries. The rich painting inside the monastery church dates from between the 12th to 17th centuries. There is also a 12th-century mosaic in the apse, depicting the Virgin with the Child.
Church of Ljubljana, Slovenia
Church of Ljubljana is a Baroque building that replaced a Gothic church in the early 18th century. Most of the original frescoes painted by Giulio Quaglio between 1703-1706 and later 1721-1723 remain today.