Nasuverse/WMG

There is only one Anhenerbe cafe' in the whole of the Nasuverse
The door you use to leave it determines wheter you get to Karano Kyoukai's Fumine, Tsukihime's Miyami, Fate/stay night's Fuyuki, the post-apocalyptic Angel Notes setting, or any other future Nasuverse location.
 * The only variation is whether the story is in its Main (dramatic) phase, or Expanded (less dramatic/silly) phase. Crossover characters (and Neco Arcs) stay away/out of sight in the former.