I know, a lot of the buildings that make Vienna such a beautiful city were built in the late 19th century, when it was all the rage to adorn every wall with nudes (male and female). Here is an especially nice example:

This one is above the entrance to an old laboratory / factory for chemicals. Sex sells, ever since.

Related posts:

1. Sexism or Modern Advertisment?
2. Vienna - worlds sexiest city?
3. Useless fact of the day: Suffering and death.
4. When The City Becomes Your Enemy
5. Rage against the City