Switzerland is excellent at promoting itself, and its most famous experiences — the Matterhorn, the fondue, the chocolate — are worth they hype. But if you're planning a Swiss adventure, consider these lesser-known Swiss travel treats as well.

Experience Swiss military readiness. To protect its prized neutrality in the tumultuous 20th century, Switzerland wired its roads, bridges, and tunnels so they could be destroyed with the push of a button — they tried to make the whole country an impenetrable mountain fortress. Most of these military installations — big guns in barns, air strips hiding like the Batmobile, and even hospitals buried deep in the mountains — are now are tourist attractions, such as Fortress Fürigen near Lucerne.

Go topless on an alpine train. While Switzerland has many impressive train trips and fancy "panoramic" cars, the most thrilling ride is in an open-top car. You'll be awestruck both at Switzerland's alpine wonders and its ability to tame nature with its railroad engineering. These topless or skylight-equipped trains run only in summer, and in just a few spots (such as the Albula Experience train and several other stretches in Graubünden, on the Oberalp Openair Express between Andermatt and Disentis, and up the Brienz Rothorn excursion route that climbs from the shores of the Berner Oberland's Lake Brienz).

Hike an alpine crest. One of Switzerland's most glorious hikes is the walk along the ridge called Schynige Platte to the cable-car station of First, high above the Lauterbrunnen Valley in the mountainous Berner Oberland region. You're virtually tightrope-walking along a skinny ridge for several hours. On one side are lakes; on the other is a mountain panorama of dramatic cut-glass peaks. And ahead, you may hear the long legato tones of an alphorn announcing that a helicopter-stocked mountain hut is open…and the coffee schnapps is on.

Get the big-city perspective. Zürich is one of those cities that tourists tend to skip right through. But even though you won't find a hint of Swiss Miss in Switzerland's leading city, Zürich is worth a day if you can spare it. Its historical Niederdorf district is dense with fun restaurants and shops, the Swiss National Museum is an interesting primer on all things Swiss, and the Kunsthaus has the country's top collection of fine art. Meanwhile, Zürich affords a peek at Swiss solutions to persistent urban problems — for example, what appear to be designer boulders in the sidewalk are there to stop cars of thieves from crashing into jewelry stores for a grab-and-run. And several vending machines in this classy city sell government-subsidized syringes to heroin junkies, whom the Swiss treat as people who need medical help, rather than as criminals. (Go ahead, buy a box — it's about the cheapest souvenir you can purchase in Zürich.)

Walk the path of a hermit monk. A century ago, a hermit monk inhabited a humble church in a cave just under a mountaintop plateau called Ebenalp, high above the town of Appenzell. A cliff-hugging path leads around the corner to the humble guesthouse that was built — right into the vertical cliff side — to accommodate pilgrims who had hiked up to pray with the monk. Today the refurbished guesthouse still offers meals and overnight stays.

Ride a high-mountain summer luge. Ascending Mount Pilatus, near Luzern, is worth it for the heavenly views alone. But for extra thrills, hit the summer-fun zone of Fräkmüntegg, an area on the mountain's north slope. Here you'll find Switzerland's longest summer luge ride: Sit yourself in a sled-like go-cart, grab the joystick brake, then scream back down the mountainside on a banked stainless-steel course. Then take the lift back up and start all over again. Nearby is a park with 10 fun ropes courses with plenty of options for novices.

Ponder some insane art. Lausanne's Collection de l'Art Brut is unique in Europe. In 1945, the artist Jean Dubuffet began collecting art he called brut — untrained, ignoring rules, highly original, produced by people free from artistic culture and fashion trends living in psychiatric hospitals and prisons. Visiting his collection, you'll wander through halls of fascinating doodles and screaming colors, marveling at the talent of people our society has locked up as "criminally insane."

Relive the Swiss old days. At the Ballenberg Open-Air Museum (an hour east of Interlaken on Lake Brienz), traditional houses, schools, churches, and shops from all over Switzerland have been moved to a huge park. The layout is just like the country: French in the west, Italian in the south, and so on. Each dwelling is furnished, old-time crafts are kept alive, and goat herders are tooting their slender stretch alphorns. It's Swiss culture on a lazy Susan for the hurried visitor, and a great rainy-day option in the Berner Oberland.