Most coins stacked into a tower in one minute
Who
Silvio Sabba
What
69 total number
Where
Italy (Pioltello)
When

The most coins stacked into a tower in one minute is 69 and was achieved by Silvio Sabba (Italy) in Pioltello, Milan, Italy, on 22 June 2015.

This record was broken on the Guinness World Record Challengers site (Challengers' tag: silvio.sabba): http://challengers.guinnessworldrecords.com/challenges/423-most-coins-stacked-into-a-tower-in-one-minute/attempts/6801