Segovia Cathedral, UNESCO, Segovia, Castile and Leon, Spain

Santa MarA�a De Leon Cathedral, Leon, Castile and Leon, Spain, Europe

Detail of the Clementine Chapel Dome, located within Saint Peter's Basilica in Vatican City, the papal enclave in Rome, UNESCO World Heritage Site, Rome, Lazio, Italy, Europe

Church of Santa Engracia converted into National Pantheon, Central crossing and nave polychromed marble patterns and pipe organ, Lisbon, Portugal

Interior of the Saint Stephen of Perm Orthodox cathedral, Syktyvkar, Komi Republic, Russia

Architectural detail of St. Peter's Basilica, featuring the iconic Vatican obelisk at its center, Vatican City, UNESCO World Heritage Site, papal enclave in Rome, Lazio, Italy, Europe

Interior of Saint Andrew Gothic Church, 13th century, Vercelli, Piedmont, Italy

Vaults, interior of Norwich Cathedral, Norfolk, England

Interior, Norwich Cathedral, Norfolk, UK

Chapel of the Langue of Castile in St. John's Co-Cathedral, UNESCO, Valletta, Malta

Low angle view of statues and paintings on ceiling inside the Great Temple of Ramses II, Abu Simbel, Aswan, Egypt

Malmesbury Abbey, Wiltshire, England, United Kingdom

View of artifacts in the interior of the Grand Egyptian Museum (GEM), Cairo, Egypt, Africa

Matriz de Santa Maria de Valega church interior, Ovar, Aveiro, Portugal, Europe

Segovia Cathedral, UNESCO, Segovia, Castile and Leon, Spain

Lecce Cathedral (Cathedral of Maria Santissima Assunta and Sant'Oronzo), Lecce, Salento, Apulia, Italy

Lecce Cathedral, Cathedral of Maria Santissima Assunta and Sant'Oronzo, Lecce, Salento, Apulia, Italy

Basilica of the Holy Sepulchre, Barletta, Barletta-Andria-Trani, Apulia, Italy

Monumental ceiling painting by Johannes Zick, Gothic, Baroque style, city parish church, Simultaneum, St. Martin, Biberach an der Riss, Baden-Wuerttemberg, Germany, Europe

Monumental ceiling painting by Johannes Zick, Gothic, Baroque style, city parish church, Simultaneum, St. Martin, Biberach an der Riss, Baden-Wuerttemberg, Germany, Europe