Is there any possible way Las Vegas could not be on our "best nightlife" list? The only way we could possibly omit it is on a technicality—since you can do pretty much anything 24/7 in Vegas, it might be wrong to call it "nightlife."

A trip to the Isle of Mull isn’t complete without a visit to the Tobermory Distillery, one of the oldest distillers in the country, and a snort of their single malt Scotch. Mull was first settled around 3000 B.C., but thankfully much of the island’s rustic natural beauty has been preserved. Explore the deep-sea cavern of MacKinnon’s Cave, try to solve the mystery of the Lochbuie stone circle and play royal at the 13th-century Duart Castle.

Amsterdam is truly a biker’s city, although pedaling along the labyrinthine streets can get a little chaotic. Stick to walking and you won’t be disappointed. The gentle canals make a perfect backdrop for exploring the Jordaan and Rembrandtplein square. Pop into the Red Light District if you must—if only so you can say you’ve been there. The Anne Frank House is one of the most moving experiences a traveller can have, and the Van Gogh Museum boasts a sensational collection of works.

Home to the oldest university in Germany, Heidelberg was hit hard during 17th-century wars and rebuilt in the 18th century with baroque buildings. For a pleasant walk, stroll through the historic city centre's Gothic streets. Be sure to take in Heidelberg Castle, the symbolic heart of the city; Alte Brucke, a beautiful 18th-century bridge; and the Student Jail. Built as long ago as the 16th century, it was used to keep mischievous students off the streets for three days to a month at a time. And they say Penn State is the number-one party school!

When most people think of Zermatt, they think of one thing: The Matterhorn. This ultimate Swiss icon looms over Zermatt, first drawing visitors here in the 1860s. The village of Zermatt itself is lovely and car-free, with old-fashioned brown chalets and winding alleys. (Don’t worry, you don’t have to walk everywhere—there are electric vehicles and horse-drawn cabs.) Skiing in the region often lasts through early summer, but when the weather’s warmer, it’s a great time to hike.

A magnet for skiers and hikers, these dramatic peaks – including the iconic Matterhorn – range from 3,000 to 15,000 feet and spread across three-fifths of the country. Abundant glaciers, scenic valleys and gorgeous alpine lakes add to the region's visual appeal. The Glacier Express train travels the 7.5-hour route through the Swiss Alps from Zermatt to St. Moritz, passing through fairy-tale villages and over 291 bridges along the way.

The fjords and mountain ranges of Tromso are simply magical. Here, the northern lights sparkle across the same navy blue sky that's illuminated by the midnight sun. You'll be spellbound by Tromso's enchanting fishing villages, fragrant botanical gardens and crystalline waterfalls. Music is a major part of the Tromso culture, particularly techno and electronic music, which adds some thumping thunder to the city once a year during the annual Insomnia Festival.

The Wawel Castle, Main Square, St. Mary's Church and Kazimierz District...Krakow, the city entered into the first list of the UNESCO World Heritage Sites, offers a wealth of history and architecture. A city for centuries appreciated for its cultural heritage has also become a European centre of gastronomic heritage. In 2019, the city of Kraków was granted the title of European Capital of Gastronomic Culture by the European Academy of Gastronomy. Krakow is the city living a full cultural life. Each year, the capital of Lesser Poland hosts nearly 100 festivals and other international-scale events.