De Monti Castle (Castello de Monti), Corigliano d'Otranto, Lecce, Salento, Apulia, Italy

Ancient Propylaea building entrance, The Acropolis, UNESCO, Athens, Greece

Ancient Propylaea building entrance, The Acropolis, UNESCO, Athens, Greece

View of the Lincoln Memorial, Washington, D.C., United States of America

Humayun's Tomb, UNESCO, Delhi, India

Humayun's Tomb Complex, UNESCO, Delhi, India

Entrance of Yanfu Temple, Wuyi County, Jinhua City, Zhejiang, China

Centuries Old Cannon Artillery (Interior), Castle of the Three Kings of Morro, UNESCO, Havana, Cuba

St. David's Battery, UNESCO, four guns installed 1910 by British to defend deep water channel leading to Royal Navy Dockyard and Hamilton, Bermuda

Oil derrick and buldings from Spindletop boomtown period, Spindletop-Gladys City Boomtown Museum, Beaumont, Texas, United States of America

Corinth Canal connecting the Gulf of Corinth in the Ionian Sea with the Saronic Gulf in the Aegean Sea, Greece

Aerial of Ouara, former capital of the Ouaddai Empire, Chad

View of the Anglican Cathedral in Stanley, the capital and only city in the Falkland Islands

The Detlav Rohwedder Haus, completed in 1936, one of few surviving wartime buildings, with post war East German mural by Max Lingner, Wilhelmstrasse, Berlin, Germany, Europe

Unesco World Heritage Site Monte Alban, Oaxaca, Mexico, Central America, Large stone column in a natural setting under a clear sky, historically significant, Mitla, Central America