Turkey, Istanbul, A minaret and arches, Suleymaniye Mosque, from the inner courtyard.

Egypt, Alexandria, Citadel of Qaitbay, also known as Fort of Qaitbay.

Egypt, Alexandria, Citadel of Qaitbay, also known as Fort of Qaitbay.

Greece, Crete, Knossos, The north entrance, depicting the charging bull fresco, Knossos Palace.

Greece, Crete, Knossos, The north entrance, depicting the charging bull fresco, Knossos Palace.

Greece, Crete, Knossos, The north entrance, Knossos Palace.

Greece, Crete, Knossos, The North Lustral Basin building, Knossos Palace.

Greece, Attica, Athens, Temple of Olympian Zeus.

Greece, Attica, Athens, Temple of Olympian Zeus.

Greece, Attica, Athens, Close up of carved stone pediment of the Parthenon at the Acropolis.

Greece, Attica, Athens, The Parthenon at the Acropolis

Greece, Attica, Athens, The Parthenon at the Acropolis.