Craigslist names the most 'romantic' subway stations in the US

Craiglist's research director Peter Freedman said that Vienna's proximity to both George Mason University and the federal agencies like the CIA may have played a role in its passengers' use of the website to find love.

He also acknowledged it may have been more simple than that.

"Maybe it's the name 'Vienna,' " Freedman said Monday in a statement. "It conjures images of attending the Imperial Ball — the swirling gowns, Strauss filling the night air and your whispering, 'Save the waltz for me.' "

As for Chicago, Freedman just said "There must be something in the air in the Chicago subway system.

"And it's turning the Windy City into the Flirty City," he concluded.