Great art speaks in a universal language, bridging cultural differences and speaking to common experience. The cities of Prague and Shanghai are far apart geographically and are culturally different but both find a common bond in their love of nostalgia. Prague is a city with enough color to fill an entire spectrum between black and white. That's the feeling evoked by a photo exhibition, dedicated to the Czech capital. It's underway in Shanghai. The photographs on view captured the city in shades of grey, light and shadow, fully illuminated and in silhouette. Prague, caught in the swirl of Art Nouveau, reveals its most decadent side through architecture. The Art Nouveau movement, though born in England in the late nineteenth century, swept across Europe in the first few decades of the twentieth century. It found its most fertile soil in Prague. The style's love of nature, color and intricate detail captured the imagination of Czech architects who decorated their buildings with reliefs, wrought-iron banisters and mosaic windows. This effervescent moment of the city's architectural history was captured on film. It's no coincidence that these dainty prints are on display here in Shanghai, a city whose fling with western culture during the 1920s and 30s proved an enduring love affair. A visitor said, "All those architectural details remind me of the old Shanghai. The style is very elaborate, and nostalgic from today's point of view. It seems certain that Shanghai at one time had been influenced by this architectural style." Perhaps like Shanghai, Prague finds its heart nostalgically returning to a time when style was expressed with a flourish.