Gammage Auditorium, architect Frank Lloyd Wright, Arizona State University, Tempe, Greater Phoenix Area, Arizona, United States of America, North America

University of Salamanca, Salamanca, UNESCO World Heritage Site, Castile and Leon, Spain, Europe

Staircase in Colegio de San Nicolas, dating from 1540, The University of Michoacan, first university in the Americas, Morelia, UNESCO World Heritage Site, Michoacan state, Mexico, North America

Murals at Antiguo Colegio de San Ildefonso, District Federal, Mexico City, Mexico, North America

San Lorenzo college flanking the Parque Jose Marti in city centre, Cienfuegos City, UNESCO World Heritage Site, Cuba, West Indies, Caribbean, Central America

Kitabaz Zadagan Ma'rifar, University Library, Istanbul, Turkey, Europe, Eurasia

Sky of Salamanca, Fernando Gallego, 1440-1507, University of Salamanca, Salamanca, UNESCO World Heritage Site, Castile and Leon, Spain, Europe

Medersa or Madrasa el-Attarine,medina, Fez el Bali, Fez, Morocco

Medersa or Madrasa el-Attarine,medina, Fez el Bali, Fez, Morocco

Medersa or Madrasa el-Attarine,medina, Fez el Bali, Fez, Morocco

Medersa Abu al-Hassan, Sale, near Rabat, Morocco

Detail, tiled,ornamentation, in Bou Inania medersa, Meknes. Morocco

Bou Inania medersa, Meknes. Morocco

Medersa or Madrasa el-Attarine,medina, Fez el Bali, Fez, Morocco

Detail, tiled, Medersa or Madrasa el-Attarine,medina, Fez el Bali, Fez, Morocco

Detail, tiled, Medersa or Madrasa Bou Inania, Fez el Bali, Fez, Morocco

Bou Inania medersa, Meknes. Morocco

Medersa or Madrasa Bou Inania, Fez el Bali, Fez, Morocco

Bou Inania medersa, Meknes. Morocco

Medersa or Madrasa el-Attarine,medina, Fez el Bali, Fez, Morocco

Medersa Abu al-Hassan, Sale, near Rabat, Morocco

Detail, tiled,ornamentation, in Bou Inania medersa, Meknes. Morocco

Medersa or Madrasa el-Attarine,medina, Fez el Bali, Fez, Morocco

Medersa or Madrasa el-Attarine,medina, Fez el Bali, Fez, Morocco

Medersa or Madrasa Bou Inania, Fez el Bali, Fez, Morocco

Medersa or Madrasa Bou Inania, Fez el Bali, Fez, Morocco

Jupiter Icy Moons Explorer JUICE mission, artwork

Jupiter Icy Moons Explorer JUICE mission, artwork

Marble statue of Plato, great ancient Greek philosopher, seated in chair and column or pillar with statue of Athena, ancient Greek goddess, patron of city, in background. Academy of Athens, Athens, Greece. Summer daylight sunshine. Blue sky

Humboldt University with Alexander von Humboldt statue, Unter den Linden, Berlin, Germany, Europe