Sasso San Gottardo

Deep within the granite heart of the Swiss Alps, a hidden world awaits. Sasso San Gottardo is two museums in one and an experience unlike any other: walk through kilometres of tunnels carved during World War II, where the echoes of soldiers' footsteps still seem to linger in the cool mountain air. One half of the museum draws you into the dramatic recent past of Switzerland's military fortifications, while the other propels you toward the future with thought-provoking exhibitions on meteorology, climate, sustainable water management, mobility, habitat, energy and security. And then there are the crystals, dazzling Alpine treasures of extraordinary size and purity found nowhere else on Earth.

A fortress at the heart of the mountain

Visiting the historic fortress Sasso da Pigna is less like touring a museum and more like stepping into another dimension carved from living rock. Hundreds of metres of dimly lit tunnels lead to an underground funicular burrowed deep into the mountain, which carries you to the fortress itself, concealed beneath the Gotthard peak. Built during World War II as part of the Ridotto nazionale, Switzerland's defensive strategy following Hitler's conquest of France, this massive structure was operational from 1943 to 1999 and ranks among the largest military fortifications in the region.

The fortress housed two gun batteries protecting the Leventina Valley and the S. Giacomo and Nufenen Passes, each armed with two 15-centimetre cannons. Deeper still, you discover the quarters where a garrison of 500 soldiers lived entirely underground, complete with an 87-bed hospital and storage facilities for water, food, ammunition and fuel sufficient to sustain months of total isolation from the outside world.

A look into the challenges of the future

Within these same rock-hewn chambers, a forward-looking exhibition transforms this relic of wartime into a stage for contemplating what lies ahead. Themes of meteorology, climate, sustainable water management, mobility, habitat, energy and security are each explored through the lens of the Gotthard's own storied history, then projected into the future using immersive multimedia technologies. In a vast underground hall, nature steals the show: extraordinary crystals unearthed near the Gotthard gleam under careful lighting, unique in the world for their remarkable size and crystalline purity.

Reduit - paintings you have to hear

In a cavernous gallery deep within the museum, Swiss artist Tullio Zanovello's monumental installation commands the space. Measuring 7 metres long, 4.5 metres high and weighing 1.5 tons, this work reimagines the S. Gotthard mountain chain through an unexpected fusion of visual art and sound. Seven folding doors open to reveal layered images while choral music composed by the artist himself fills the chamber, drawing spectators into a deeply moving 20-minute experience woven from the stories, legends and enduring myths of the S. Gotthard.

If you have more time -- the itinerary

With a full day at your disposal, consider exploring both sides of the Gotthard region, south and north. Check traffic conditions at the tunnel entrances before setting out and plan your route accordingly to avoid long waits.

If the southern entrance is clear, take the freeway through the tunnel and exit at Goschenen, continuing toward Andermatt. Just before town, pull over at the famous "Devil's Bridge", one of the Gotthard's most dramatic landmarks. A signposted circular walk of about 20 minutes reveals centuries of human ingenuity, with bridges from successive eras layered one above the other in a stunning landscape where river water glides over smooth, translucent granite.

Continue to Andermatt and ascend to the Gotthard Pass through a hauntingly lunar landscape. After visiting the Sasso San Gottardo Museum at the summit, begin your descent toward Airolo along the legendary old cobblestone road known as the Tremola, a serpentine marvel of engineering whose sweeping hairpin bends reveal one breathtaking panorama after another. Once in Airolo, stop at the Caseificio del Gottardo (Gotthard Dairy) to taste and purchase artisanal cheeses and traditional regional products. Simply follow the signs for the Airolo-Pescium cable car; the dairy stands right beside it.

If traffic blocks the southern entrance, reverse the itinerary: exit the freeway at Quinto (one stop before Airolo), follow the highway to Airolo, then climb to the Pass via the blue-signed route to the Tremola cobblestone road.