The Historic Sewers Of Europe Become Tourist Attractions

“Fortunately, the classic 1949 film with Orson Welles, The Third Man, climaxes in a dramatic chase through Vienna’s sewers. Capitalizing on that, [the city] launched a Third Man Tour of the subterranean waterways. Today, it’s an underground hit. [And] Vienna isn’t alone in plumbing the depths of tourism.”

Source: The Wall Street Journal 05/18/11