Looking for unique and original things to do while in Berlin, Vienna, Prague, Milan, Paris, or London!!?

Question

Any ideas about what do to that is original, unique, and fun. Looking to have the time of our lives, without lame city tours or countless photos standing in front of boring historical buildings!!! How can we spice up things up a bit? VERY OPEN MINDED with ideas. Will be traveling the end of July.

(heard of one idea of a weekly Sunday dinner party with Jim Haynes in Paris and skydiving in Prague....things like these are random and excellent!!)

Answer 1

How about a jump of Charles Bridge in Prague?