Ahoy, me hearties! Detective Pux here, and I'm on the hunt for mountains with holes that allow us to see straight through them. You asked about Europe, and I must say, the continent has its fair share of natural wonders, including some very unique mountains.

Now, when it comes to mountains with holes, I'm talking about geological formations known as "window" formations. These are rock formations that have a large, circular opening in the center, making it possible to see through to the other side.

One such mountain is the famous Trolltunga in Norway. This iconic rock formation juts out over a cliff, offering breathtaking views of the surrounding landscape. From Trolltunga, you can see all the way to the fjords and glaciers, and it's easy to understand why this mountain is a popular spot for adventure-seekers.

Another great example of a mountain with a hole in Europe is the Cuillin Mountain Range in Scotland. These peaks are among the most dramatic in the UK, with their jagged peaks and sheer cliffs. Some of the more popular peaks in the range, such as Sgurr nan Gillean, have windows in the rock, allowing for stunning views of the surrounding landscape.

In Switzerland, you can find the Eiger Mountain. It is not only a mountain with a hole, but also a popular spot for mountain climbing. The Eiger's north face is one of the most challenging and dangerous climbing routes in the world, but if you're up for the adventure, the views from the top are truly spectacular.

Finally, I can't forget about the French Alps. The Massif des Écrins is a stunning mountain range in the heart of the French Alps, and the mountains here offer some of the best views in all of Europe. From the top of these peaks, you can see for miles and miles, and the sheer size of the mountains will take your breath away.

So there you have it, me matey! Whether you're looking for breathtaking views, an adrenaline-fueled climb, or just a peaceful spot to soak up the natural beauty, Europe has plenty of mountains with holes to offer. So grab your gear and set sail for adventure!