Here's one for Olympics fans!
For the 1936 Berlin Olympics, a special cancel was used at 14 different venues around Berlin. The cancel featured the Olympic Bell and the name of the venue.
The venues were:
Berlin Olympisches Dorf -- Olympic Village
Berlin Ausstellung Deutschland -- Germany Exhibition
Berlin Grünau Regattabahn -- Yachting Camp
Berlin Int. Sportstudenten-Lager -- International Sports Students' Camp
Berlin Olympia-Reiterplatz -- Olympic Riding Ring
Berlin Olympia-Schwimmstadion -- Olympic Swimming Stadium
Berlin Olympia-Stadion -- Olympic Stadium)
Berlin Olympia-Stadion (Presse) -- Olympic Stadium Press Building
Berlin Olympialager Heerstrasse -- Olympic Camp, Army Street
Berlin Olympia-Pressehauptquartier -- Olympic Press Headquarters
Berlin Deutschlandhalle -- Berlin's German Hall
Berlin Fahrbares Postamt -- Travelling Post Office
Berlin Int. Kanulager Muggelsee -- Olympic Canoe Camp, Muggelsee
Berlin K.d.F.-Stadt -- Strength Through Joy Town
These cancels are cataloged in Bochmann as S186(a) through S186(o), excluding (j).
S186(a) -- Olympisches Dorf
S186(b) -- Ausstellung Deutschland
S186(c) -- Grünau Regattabahn
S186(d) -- Int. Sportstudenten-Lager
S186(e) -- Olympia-Reiterplatz
S186(f) -- Olympia-Schwimmstadion
S186(g) -- Olympia-Stadion
S186(h) -- Olympia-Stadion (Presse)
S186(i) -- Olympialager Heerstrasse
S186(k) -- Olympia-Pressehauptquartier
S186(l) -- Deutschlandhalle
S186(m) -- Fahrbares Postamt
S186(n) -- Int. Kanulager Muggelsee
S186(o) -- K.d.F.-Stadt