Visit the Kapellbrücke, a covered wooden pedestrian bridge that is one of Switzerland's oldest landmarks. Then head to the Lion Monument, a sculpture dedicated to Swiss Guards who were killed during the French Revolution.
Take a train to Jungfraujoch, the highest railway station in Europe, and enjoy stunning views of the Swiss Alps. Afterwards, visit the St. Beatus Caves, a natural underground paradise filled with stalactites, stalagmites, and waterfalls.
Take a cable car up to Gornergrat and see the Matterhorn, one of the highest peaks in the Alps. Then hike to Stellisee, a crystal-clear alpine lake that provides incredible views of the Matterhorn.
Enjoy a scenic drive through the countryside to Appenzell, a charming village filled with traditional Swiss architecture. Go on a cheese tasting tour at Schaukaserei Appenzeller, where you can taste Swiss cheeses like Emmental, Gruyere, and Tête de Moine.
Visit the Bahnhofstrasse, one of the world's most expensive and exclusive shopping avenues. Take a stroll through the picturesque streets of the Old Town and see the amazing Fraumünster church and its stained-glass windows created by Marc Chagall. End the day with a dinner at Lindenhofkeller, a traditional Swiss restaurant in a romantic setting.
If you have more time, consider visiting other Swiss cities such as Geneva or Bern. If you have less time, eliminate a day trip, either to Interlaken or Zermatt. To save money, pack a picnic lunch and take advantage of free activities like hiking or exploring Old Towns.