Prague.

“The Mole (in the Czech original called Krtek, or, for little mole, Krteček) is an animated character in a series of cartoons, created by Czech animator Zdeněk Miler. The premiere of the first short film with the Mole was on Venice Film Festival in 1966. Since its inception, the cartoon won itself an enormous popularity in many Central European countries, as well as India, China, Kazakhstan, Croatia, Russia, Ukraine, Iraq and Japan.”

I also remember seeing it on British TV as a child.