Byzantine architecture of Aya Sofya (Hagia Sophia), constructed as a church in the 6th century by Emperor Justinian, a mosque for years, now a museum, UNESCO World Heritage Site, Istanbul, Turkey, Europe

Byzantine architecture of Aya Sofya (Hagia Sophia), constructed as a church in the 6th century by Emperor Justinian, a mosque for years, now a museum, UNESCO World Heritage Site, Istanbul, Turkey, Europe

Byzantine architecture of Aya Sofya (Hagia Sophia), constructed as a church in the 6th century by Emperor Justinian, a mosque for years, now a museum, UNESCO World Heritage Site, Istanbul, Turkey, Europe

Interior of Grand Bazaar (Kapali Carsi), Istanbul, Turkey, Europe

View of the grand Atrium of the Quintili's villa, built in the 2nd century BC on the Appian Way, Rome, Lazio, Italy, Europe

Byzantine architecture of Aya Sofya (Hagia Sophia), constructed as a church in the 6th century by Emperor Justinian, a mosque for years, now a museum, UNESCO World Heritage Site, Istanbul, Turkey, Europe

Interior of Grand Bazaar (Kapali Carsi), Istanbul, Turkey, Europe

Nave, St. Stephen's Cathedral, Sens, Yonne, Burgundy, France, Europe

Interior of Museum of Islamic Art, Doha, Qatar, Middle East

Interior of Museum of Islamic Art, Doha, Qatar, Middle East

Trafford Centre, Indoor shopping mall, escalators, Greater Manchester, England, United Kingdom, Europe

View taken from the 85th floor of the Jin Mao Building looks down to the 55th floor, Atrium of the Grand Hyatt Hotel, Pudong, Shanghai, China, Asia

View from the Jin Mao building looking down to the 55th floor, which is the atrium of the Grand Hyatt Hotel, Shanghai, China, Asia

View taken from the 85th floor of the Jin Mao Building looks down to the 55th floor, Atrium of the Grand Hyatt Hotel, Pudong, Shanghai, China, Asia