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 center'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!

The city of Freiburg im Breisgau sits austerely on the edge of the Black Forest. Home to one of Germany’s oldest universities and a Gothic sandstone cathedral, it’s a hub for academics and medieval history buffs. Chug German suds at a local brewery, then hop a cable car up Schauinsland mountain, where astounding views and a solar observatory await.

If you’re after a winter sports holiday, you can’t find a more gorgeous place to do it than Interlaken, the popular Swiss resort town. There’s superlative skiing, toboggan rides, miles of sledding tracks (which, like the ski slopes, vary in difficulty), snowboarding… all with amazing views of the mountains. In summer, hike among the ibex at nearby Neiderhorn, or shop for watches in the town’s boutiques.

Just two hours north of London by rail, the city of York holds 1900 years' worth of history in its ancient walls. The Romans built the city in 71 AD, and the Vikings captured it in 866 AD. Stop by the Yorkshire Museum and Gardens for a look at what the Roman and Vikings left behind (they must have packed light when they left). From there, move on to the York Castle Museum for a not-so-quick overview of the most recent 400 years.

You’ll find plenty of orange trees here, but the fruit known as the "Valencia orange" was actually developed in California. Travelers interested in local food should focus on paella instead. While the city contains many monuments, Valencia’s modern crown jewel is the City of Arts and Sciences, a futuristic complex of museums, cinemas, theaters, and more.

A youthful, modern metropolis with a diverse population, Tel Aviv dates back only to 1909. Clubs, bars, a thriving arts community, gay life and beaches attract artists, musicians and young professionals to Tel Aviv's more secular scene. Its UNESCO-designated Bauhaus architecture has won the city the moniker "The White City." Walk, drive or catch cabs between the cultural exhibition pavilions of Haaretz Museum, historic Independence Hall Museum, bustling Carmel Market and Old Jaffa's boardwalk.

Nepal’s capital is surrounded by a valley full of historic sites, ancient temples, shrines, and fascinating villages. Mingle with locals and animals amid Durbar Square’s monuments, or join mountain trekkers in the bustling Thamel District. Explore shops for exquisite work by local artisans—carpets and paper prints are specialties.

About an hour south of Mombasa, the sparkling white sands and lush greenery of Diani invite you to relax under a beach umbrella with a refreshing drink. Try a camel ride for the tourist experience or book a bike tour inland for a glimpse of life in local villages. Diani is also a base for several safari companies.

Buffalo is being reborn as a mecca for art, architecture, history, culture, dining and entertainment. Experience Frank Lloyd Wright’s stunning Darwin Martin House Complex and world-class modern art at the Albright-Knox Art Gallery. Relive part of the city’s incredible history at the Theodore Roosevelt Inaugural National Historic Site. Explore the emerging Canalside waterfront district, hip Elmwood Village, more than 400 independently owned restaurants (serving our famous chicken wings and more) and nearby Niagara Falls.