Lviv National Academic Opera and Ballet Theatre, Lviv, UNESCO World Heritage Site, Ukraine, Europe

Lviv National Academic Opera and Ballet Theatre, Lviv, UNESCO World Heritage Site, Ukraine, Europe

Odessa National Academic Theater of Opera and Ballet, Odessa, Black Sea, Ukraine, Europe

University of Coimbra, Coimbra, Coimbra district, Centro Region, Portugal, Europe

Gothic architecture of an old cathedral against a clear blue sky, York, Yorkshire, England, United Kingdom, Europe

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

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

Stela at the Structure I, detailed view, Calakmul Archaeological Site, Campeche State, Mexico

Autonomous University of Yucatan, Merida, Yucatan State, Mexico

Autonomous University of Yucatan, Merida, Yucatan State, Mexico

Autonomous University of Yucatan, Merida, Yucatan State, Mexico

Theological Faculty, Stellenbosch University, Stellenbosch, Western Cape Province, South Africa, Africa

Copenhagen, Denmark ��� View of Frue Plads��� entrance to Copenhagen University, framed by bronze busts of scholars, marking the historic core of Denmark���s academic elite since 1479.

A vertical image of the Radcliffe Camera and Radcliffe Square framed by a metal gate in Oxford

Salamanca, Castile and Leon, Spain

Istanbul University, main marble gate, Istanbul, Turkey, Europe

Ancient Academy of Lausanne and Cite-Devant street viewed from the tower of the Cathedral of Notre Dame, Lausanne, Canton of Vaud, Switzerland

Greece, Attica, Athens, University of Athens.