First: The Catacombs of Paris
Skulls themselves aren’t quirky, but when six million skulls are gathered together, it becomes quite eerie… What truly sends chills down your spine might be the fact that these skulls are neatly arranged, sorted by craniums, femurs, and tibias! And!
Even more bizarre, two brave souls submitted a challenge declaration, explaining their source of courage, and after a rigorous selection process… a 27-year-old man and his mother were chosen for the unique opportunity to spend the night in the catacombs. After enjoying a fine French dinner, they could then sleep amidst six million skulls. 
If you’re interested in visiting, the catacombs are located in Paris.
Second: The Stone Forest of Madagascar
For something less terrifying, we have the Stone Forest in Tsingy de Bemaraha National Park, Madagascar, where the rocks are sharp as knives. It’s still a bit unnerving…
And there are daredevils who walk on these sharp rocks like geckos…
If you want to visit, you can fly to Antananarivo, the capital of Madagascar, and then drive to Morondava, the city closest to the national park, to start your adventure.
Third: Tunnel of Love in Ukraine
Moving away from the dark themes, here’s something more romantic. Just the name sounds passionate, doesn’t it? The Tunnel of Love is actually a railway in Klevan, Ukraine. Every spring, the trees along the tracks burst into leaf, as if love itself is sprouting.
Couples come here to take wedding photos, making for a truly picturesque setting. If you want to see love in action, fly to Kyiv, the capital of Ukraine, and then drive to Klevan where the Tunnel of Love is located.
Fourth: Mutnovsky Volcano Ice Cave, Russia
The fourth in our series of mind-blowing destinations, a cave of ice and fire. This is essentially a volcanic crater, extending 300 meters. Due to the abundant rainfall in the area, water has seeped into the cave over time, freezing to form this ice cave wonder.
At the bottom, you’ll find volcanic rocks and flowing streams, while the walls and ceiling are entirely made of ice! Sunlight filtering through the ice creates a seven-colored glow, almost as if special effects were added…
This cave is located on the Kamchatka Peninsula in Russia, with daily flights from Moscow.
Fifth: Vatnajökull Ice Cave, Iceland
In addition to the one above, the Vatnajökull Ice Cave in Iceland is also a world wonder.
The world-famous blue ice cave, truly a deep, mysterious blue…
It’s like walking into a special effects blockbuster.
This blue ice cave is within Iceland’s largest glacier, Vatnajökull. Walking on this vast glacier feels like this.
If you want to visit, fly to Reykjavik, Iceland’s capital, and include a stop in the town of Jökulsárlón during your island road trip. Follow a local guide to witness the dreamlike blue ice cave.
