Great Wall of China Frame Color:Unframed Ninth Avenue in 1940 and

Ninth Avenue in 1940 and Second Avenue in 1942

Piece together the incredible beauty of a steep-sided valley in Norway with this Times-exclusive jigsaw puzzle

is subject to ‘the vicissitudes of fortune

” a Times Opinion article on October 17

Central Park

Great Wall of China Frame Color:Unframed Ninth Avenue in 1940 andFew structures in the world are as iconic as China's Great Wall, which through the centuries has served as a passage for armies, merchants, monks, envoys, explorers and tourists. Extending some 5,500 miles long, it is not one wall, but many that were built starting in ancient times and were consolidated during the Ming dynasty (1368 1644). The Great Wall was built to keep northern raiders from swooping down into the heart of China. Jeannie Ralston