I've seen wild moles on several occasions. The most reliable way I have found to see them is when saltmarsh floods on a spring tide- near where I grew up on the Wirral, there's a large area of Saltmarsh on the Dee Estuary, and whenever there's a spring tide, it all floods, and people gather to watch the spectacle at Parkgate. Smalls mammals and birds, everything from water rails to pipits to voles and yes, moles, are driven to higher ground by the rising tidal water, and there's often an impressive array of raptors gathered for an easy meal. I've never failed to see moles when I've gone to Parkgate at a spring tide.
the Wildwood Trust have held rescue moles in the past, though don't have any currently, and I'm not sure any were ever on display.