Walk atop Rothenburg’s city walls or climb to the top of the town hall for great views. The Night Watchman tour is an unforgettable way to learn the city’s history. And our travelers also recommend the Medieval Crime Museum (Mittelalterliches Kriminalmuseum)—it’s gruesome but fascinating.

There’s plenty to see and do in this 2,000-year-old German city. The gothic Saint Bartholomeus Cathedral is a perseverant structure, having been destroyed and rebuilt twice since its 14th century construction. Catch a screening at the German Film Museum, stroll the exhibit halls of one of Frankfurt’s many galleries, or climb to the top of the Main Tower for sweeping 360-degree views of the city.

One of the world’s fashion capitals, Milan offers endless opportunities for chic shopping. Hit the artsy neighborhood of Brera for leather goods and Via Monte Napoleone for exclusive, expensive boutiques. The enchanting mosaics and glass vaults of Galleria Vittorio Emanuele II make shoppers feel like they’re wandering inside a painting. Take break from your spree to gape at the iconic Duomo, then grab tickets to a performance at La Scala. Post-opera, the Navigli district pulses with late-night activity.

Lingering over pain au chocolat in a sidewalk café, relaxing after a day of strolling along the Seine and marveling at icons like the Eiffel Tower and the Arc de Triomphe… the perfect Paris experience combines leisure and liveliness with enough time to savor both an exquisite meal and exhibits at the Louvre. Awaken your spirit at Notre Dame, bargain hunt at the Marché aux Puces de Montreuil or for goodies at the Marché Biologique Raspail, then cap it all off with a risqué show at the Moulin Rouge.

Barcelona feels a bit surreal – appropriate, since Salvador Dali spent time here and Spanish Catalan architect Antoni Gaudí designed several of the city’s buildings. Stepping into Gaudí’s Church of the Sacred Family is a bit like falling through the looking glass - a journey that you can continue with a visit to Park Güell. Sip sangria at a sidewalk café in Las Ramblas while watching flamboyant street performers, then create your own moveable feast by floating from tapas bar to tapas bar.

Conquering New York in one visit is impossible. Instead, hit the must-sees – the Empire State Building, the Statue of Liberty, Central Park, the Metropolitan Museum of Art – and then explore off the beaten path with visits to The Cloisters or one of the city’s libraries. Indulge in the bohemian shops of the West Village or the fine dining of the Upper West Side. The bustling marketplace inside of Grand Central Station gives you a literal taste of the best the city has to offer.

The windy city is a cornucopia of modern art, fine dining, cutting edge comedy, and die-hard sports fans. Snap a photo of your reflection in the silver Cloud Gate sculpture at Millennium Park before heading to Grant Park to get hit with the refreshing spray of Buckingham Fountain. There are dozens of museums and theater companies in Chicago, so a cultural experience is never hard to find. You’re sure to laugh your head off at the Second City Theater, the professional launch pad of many famous comedians.