Tube 2 Gimmicked Maps by Russell and Ethan Leeds
You ask a spectator to think of any one of the 284 stations on the Underground Map and commit it to memory. Nothing is ever written down! You then ask them to travel down the same line in their imagination and stop at a completely different station. Without doing anything suspicious and no memory work you can impossibly reveal their departure point and final destination.
tube magic trick by russell leeds and ethan leeds