Puerta del Nacimiento (Renaissance doorway) of the Catedral Nueva (New Cathedral), Salamanca, Castilla y Leon (Old Castile), Spain, Europe

Palais Ducal de Nevers (Duke's Palace), castle dating from the 15th and 16th centuries and a historic monument, Nevers, Burgundy, France, Europe

Catedral de Granada, Granada, Andalucia, Spain, Europe

Santo Domingo church at the Qorikancha, Cuzco, UNESCO World Heritage Site, Peru, South America

Basilica of Santa Maria Novella, Florence, Tuscany, Italy, Europe

View of Lyon Cathedral, a Roman Catholic church dedicated to St. John the Baptist, seat of the Archbishop of Lyon, Place Saint-Jean in central Lyon, Auvergne Rhone Alpes, France, Europe

Detail of the Puerta del Nacimiento (Renaissance doorway) of the Catedral Nueva (New Cathedral), Salamanca, Castilla y Leon (Old Castile), Spain, Europe

Basilica of Santa Maria Novella, Florence, Tuscany, Italy, Europe

Oak door at Chateau du Rivau, 15th and 16th Century Renaissance architecture, near Chinon in the Loire Valley, France

Ornate doorway at Renaissance 15th Century Chateau du Rivau, Chateaux of the Loire, Loire Valley, France

The beautifully decorated entrance door to the chateau at Chenonceau, Indre et Loire, Loire Valley, France, Europe

Chateau de Puyguilhem, 16th Century renaissance architecture near Villars, The Dordogne, France

Florence Baptistery, bronze East doors, Gates of Paradise, by Lorenzo Ghiberti, Piazza Del Duomo, Florence, Italy

Church of Elijah the Prophet, with ornate arched doorways and colourful frescoes; Yaroslavl, Yaroslavl Oblast, Russia

Fresco, Transfiguration Cathedral, Monastery of St Euthymius; Suzdal, Vladimir Oblast, Russia

St John the Baptist Church, Trinity Lavra of St. Sergius; Sergiev Posad, Moscow Oblast, Russia

Church of Elijah the Prophet, with ornate arched doorway and colourful frescoes; Yaroslavl, Yaroslavl Oblast, Russia