In the past, the strict life of the people did not allow kissing in the street. It was unacceptable. That's why lovers hid in the alleys. Here is the kiss lane. The passes under this gate is supposed to kiss and marry.
Extremely recommend spending two hours in Vienna with guide Tom. He tells the stories of the city and its history in the short, interesting and elegant way. The trip starts from Stephan Platz, passes through the streets of Graben, the Jewish quarter, Am Hof and ends at Ferstel Palace and the Mekler cellar.