This is, to my knowledge, the only piece of the Berlin Wall which is displayed to the public in the country of Luxembourg. It was placed here because it’s near to where the Schengen Agreement was signed in June 1985 which did away with border controls between many EU nations.
The segments of wall were placed here in 2010 and they marked the 25th anniversary of the signing of the agreement. The segments overlook the banks of the River Moselle and they were donated by the Sony Centre and the City of Berlin. Before being moved here, the pieces of wall had been located at Potsdamer Platz in Berlin.
For some reason the base of the plaque which gives information about the wall notes that the segments aren’t for sale. I’m not quite sure what prompted that useful information to be added, perhaps tourists from certain nations tried to put an offer in…..