How Was the Road Tunnel Created?
Bosnia, europe
N/A
N/A
moderate
Year-round
Okay, picture this: you're cruising through Bosnia and Herzegovina, heading towards Ponikva Cave. This isn't just any road trip; it's an adventure through a real-life cave! Yep, you drive right *through* it.
This quirky stretch of road is a local connector, essential for everyone from regular cars to massive logging trucks hauling timber from a nearby sawmill. And get this: the cave was actually widened to make room for those big rigs! The "tunnel" features a paved road, a sidewalk on one side.
Inside Ponikva Cave, you'll find one main passage that acts as the road, plus a couple of smaller channels. Oh, and a tiny stream trickles through one of those side passages. The cave is home to bat colonies. Because of the heavy truck traffic, a special road sign warns drivers to slow down to avoid collisions with the bats. It’s a triangular hazard sign, but instead of an exclamation point, it features a bat!
Related Roads in europe
hardThe Inhumane Climb to Nebelhorn with 45% Ramps
🇩🇪 Germany
# Nebelhorn: A Brutal Alpine Beast Ready for one of Europe's most insane road climbs? Head to Nebelhorn, a 2,068 m (6,784 ft) peak nestled in Bavaria's Allgäu Alps near the charming village of Oberstdorf, just a stone's throw from the Austrian border. This isn't just any mountain road—it's legendary for good reason. Fair warning: this road is absolutely relentless. We're talking gradients that hit 45% in places, making it one of Germany's highest and steepest roads. You'll need a 4WD vehicle and serious driving skills to tackle this beast. The climb breaks down into two sections. First up is the drive to Edmund Probst Haus mountain hut (1,932 m), where the real punishment begins. The asphalt here is sketchy in spots—it was freshly paved back in 2008, but age and those brutal gradients have done a number on it. Narrow passages and 20%+ slopes in the final kilometers mean you'll be gripping that steering wheel tight. It's not a super long section, but don't let that fool you. Beyond the hut? There's still another kilometer to the cable car station at the summit, but that's strictly foot traffic—no vehicles allowed. It's an absolutely brutal walk on unpaved terrain, and trust us, by that point your legs will already be screaming. The payoff? Absolutely stunning Alpine scenery that rivals anything in the northern Alps. Jaw-dropping views make this one of the most spectacular (and terrifying) drives in all of Europe.
moderateWhere is Passo Campo Carlo Magno?
🇮🇹 Italy
Okay, picture this: you're cruising through the Italian Alps in Trentino-Alto Adige/Südtirol, and you stumble upon Passo Campo Carlo Magno. Legend says Charlemagne himself crossed this spot way back in 800 AD on his way to becoming emperor! The name stuck, and it's been a must-see ever since. The SS239 road stretches for about 30.6 km (19 miles), winding its way from Pinzolo to Dimaro. Fair warning, this isn't a leisurely Sunday drive. Parts of it are pretty steep! The Giro d'Italia loves this climb for a reason. From Pinzolo, you're looking at a gain of 716 vertical meters over 15.1km, which works out to an average gradient of 4.7%. If you're tackling it from Dimaro, you'll climb 709 vertical meters over 11.6km with a 6.1% average. But hey, all that effort is rewarded with stunning views of the Adamello-Brenta mountain region. The road surface is generally in good shape, so you can focus on the scenery. Get ready for an unforgettable alpine adventure!
extremeEl Yelmo
🇪🇸 Spain
# El Yelmo: A Thrilling Mountain Adventure Perched at a impressive 1,785m (5,856ft) above sea level in Spain's Jaén province, El Yelmo sits within the stunning Natural Park Sierras de Cazorla, Segura and the Villas in Andalusia. The recently asphalted road snaking up to the summit makes this peak more accessible than ever—but don't let that fool you into thinking it's a casual cruise. The climb is seriously steep, averaging a 7% gradient with some hair-raising sections hitting 12%. Throw in the relentless winds that hammer this altitude year-round, and you've got a genuine mountain challenge on your hands. Winter? Forget about it—avalanches, heavy snow, and landslides are real threats, and icy patches can appear without warning. The road can shut down entirely when snow decides to show up. If narrow, unpaved mountain roads aren't your comfort zone, or if heights make you queasy, this might not be your trip. But for adrenaline seekers with solid driving skills? It's absolutely worth it. The summit rewards brave drivers with mountain refuge facilities, communication towers, and views that paragliders absolutely love. Just stick to decent weather, keep your eyes sharp for ice, and respect what this mountain demands. Drive it on its terms, and El Yelmo will blow your mind.
extremeHow long is Les Grands Goulets road?
🇫🇷 France
Okay, picture this: Les Grands Goulets, a legendary French road carved into the cliffs of the Drôme region in the Auvergne-Rhône-Alpes. Built way back in the mid-1800s, this 1.7 km (just over a mile) stretch of Route Départementale RD 518 clings dramatically to the mountainside, connecting Pont-en-Royans to the Vercors plateau. What makes it so special? Imagine winding above the Vernaison river, with insane views of the Royans region unfolding before you. The rock face looms overhead as you enter a natural tunnel, with only slivers of light piercing through the mossy, damp interior. It's like driving into a cave! Sadly, this epic route has been closed since 2005. They built the Tunnel des Grands-Goulets as a replacement, but the old road still exists as an emergency exit. Back in the day, it was a seriously daring drive, super narrow with blind curves, steep drops, and zero guardrails. Now, it's a deserted, unused, and sadly closed, even for hikers and cyclists. It was one of France's most famous "balcony roads," offering an unforgettable (and maybe slightly terrifying) experience.