This one is near Slavonice part of light bunkers museum. I don’t know if it wasn’t covered or if it is uncovered as a part of exhibition.

Near Vratěnín there is this one part of art project Bunker Cut. More on this here: https://www.ondrejbelica.net/bunkercut

Near Bratislava there is this one in flood prone region. Double deck let’s you use the higher level while lower level is flooded.

And some NCD use I found for them. It is excellent wind cover when you need to make dinner on the road.