"My exploration of the newly renovated Petrusse Casemates was not only fun, but also a pleasant surprise. I’d been here before in 2013 and while back then, I found it fascinating and unlike anything I’d ever been to before, I remember it as being a bit dark, and I felt a tad claustrophobic in places. No more.
After extensive enhancement and security works, the casemates are now well-lit, the tunnels feel more open, and cool additions such as interpretive signage, and the light/audio show detailing the casemates’ history add to the experience. A definite must-visit when you’re in Luxembourg-City."