St. Peter's Basilica, Vatican City: The world's largest church, it boasts impressive Renaissance architecture, Michelangelo's dome, and the sacred tomb of St. Peter.
Sagrada Familia, Barcelona: GaudÃ's unfinished masterpiece, it presents a unique blend of Gothic and Art Nouveau styles, symbolising Christian beliefs through architecture.
Notre-Dame Cathedral, Paris: A timeless symbol of Gothic architecture, it features stunning rose windows, majestic towers, and intricate sculptures, a Parisian icon.
Saint Basil's Cathedral, Moscow: Known for its vibrant, onion-shaped domes, it's an architectural wonder that represents the cultural spirit of Russia.
Hagia Sophia, Istanbul: Formerly a cathedral, then a mosque, now a museum, its majestic dome and Byzantine mosaics tell a rich historical tale.
Chartres Cathedral, France: Renowned for its remarkable stained-glass windows and preserved Gothic architecture, it's a pilgrimage site and a testament to medieval craftsmanship.
St. Mark's Basilica, Venice: An exemplary piece of Byzantine architecture, it captivates with gold mosaics, marble floors, and the Pala d'Oro altarpiece.