Across the street of Delirium Cafe, you will find the Floris Bar.
The Floris Bar has its own specialty: you will travel back in time in an old Parisian bistro to be introduced to a forgotten drink (actually banned until recently) and resuscitated : the famous Absinthes (over 600) and more traditional alcohols: Gins (a hundred), Whiskeys (more than 200 ), anise and liqueurs.
You can taste Absinthe in different ways : in shot, traditional way with a piece of sugar and water dripping on him from a fountain, soaring in a pipe!