San Juan is the vibrant, cosmopolitan capital of the island of Puerto Rico. Encompassing hundreds of years of history, the city blends Spanish-era historic sites, such as the San Felipe del Morro fortress, with modern entertainment and fashionable shopping districts. More than a million people call San Juan home, while hundreds of thousands of tourists call it their favorite place to vacation each year.

Located in the southeast of France, Provence-Alpes-Côte d'Azur is a charming region celebrated for its beautiful coastline, with popular destinations like Nice and Saint-Tropez, as well as its spectacular natural scenery, ranging from the majestic French Alps to the awe-inspiring lavender fields. The region boasts numerous historical landmarks, such as the ancient Roman city of Arles and the Palais des Papes in Avignon. Provence is also a hotspot for outdoor activities, such as skiing and hiking, and hosts renowned festivals, such as the Cannes Film Festival.

The 2000-year-old imperial city of Aachen, a cosmopolitan hub brimming with historical charm, lies at the nexus of Germany, the Netherlands, and Belgium — a trio inviting exploration. Not only famed as Charlemagne's imperial capital and his final resting place, Aachen is also renowned for its Aachener Printen, a unique type of gingerbread originating from this city.

Vilnius, the capital of Lithuania, is one of the most attractive cities in Eastern Europe. It draws attention, not only because of its unique architectural character but also because of its cultural events and attractions. During the first ten years of Lithuanian independence, the city began to draw in visitors. The number of tourists has consistently increased over the years and so have the tourist infrastructure and services offered by the country.