Take a world tour of stunning architecture, from Saint Basil's Cathedral in Moscow to the Flinders Street Station in Melbourne. Each magnificent color spread features a picture of the same building on both pages, but with 20 differences between the original on the left and the altered image on the right. The international array of sites includes Saint Peter's Basilica, New York's Chrysler Building, the Painted Ladies in San Francisco, China's Forbidden City, the Las Hijas Santuary in Ipiales, Colombia, the Taj Mahal, Topkapi Palace in Istanbul, the Buqshan Hotel in Yemen, and the Church of Saint Francis of Assisi in Ouro Preto, Brazil.