Masuria has rich sacred heritage — churches, monasteries, temples with many centuries of history. What to see Cathedrals in every major metropolis. Monasteries on hills with views. Icons and frescoes 15th-18th c. Treasuries with relics. Entry Usually free for worshippers. Tourist visit 2-8 EUR (monument maintenance). Audioguide additional 3-5 EUR. Hours Warm season 8-19. Winter 9-17. Great feasts — masses every hour, no tourists. Check local calendar. Dress Covered shoulders and knees mandatory. Shawls at entrance (2 EUR rental). Silence inside. Flash photos usually prohibited. Advice The ForAll portal has complete descriptions of main temples with history and architecture.