Just another small eros center along Taunus Strasse in Frankfurt's red-light district next to the main railway station. Walk up the narrow stairs and discover the ladies who occupy the bedrooms one by one. The higher your walk the more intense the smell of cheap perfume gets. Sometimes there are stunners all the way up the attic and other days all steps may be for nothing.
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Avoid being sidetracked at the entrance. It's free to walk up.