My photo album

http://www.math.sc.edu/~qwang/photo/beijing3.jpg

http://www.math.sc.edu/~qwang/photo/Tianjin.jpg

http://www.math.sc.edu/~qwang/photo/Shanghai2.jpg

http://www.math.sc.edu/~qwang/photo/sf.jpg

My favorite cities: Beijing, Tianjin, Shanghai, China, and San Francisco, USA, which are respectively the city where I was born, the city where I left my youth memory, the city where I enjoy visiting, and the city where I first landed in the US.