"The city in its setting and entire surroundings may be said to have something ideal." (Johann Wolfgang von Goethe, 1797). Scarcely any other European city has had its praises so often sung as Heidelberg. The mysterious Heidelberg Castle, the picturesque Old Town, and as Goethe himself stated, the perfection of its setting – in the nineteenth century, all of this attracted the German romanticists, who immortalized Heidelberg in poetry, music, and art. Today the charm of Old Heidelberg is combined with a future-oriented and international focus.

With a globally recognizable skyline and 8.4 million people who call it home, New York City is bursting with diversity and excitement – from the iconic attractions you've seen on TV and in the movies to hidden gems waiting to be uncovered. Each of the five boroughs – The Bronx, Brooklyn, Manhattan, Queens and Staten Island – has a distinctive flavor, while individual neighborhoods maintain identities all their own.

Manila, the capital of the Philippines, is one of Asia's best-kept secrets. As the capital of the only predominantly Catholic country in the Orient, it presents a unique blend that feels slightly out of place, yet vibrantly infused with Latin American and Caribbean influences. Music and dancing are ubiquitous, and the city's warmth and enthusiasm can easily rival that of Bangkok. Manila's rich history, shaped by centuries under Spanish religious influence and decades of American consumerism, has led to the saying that the city spent "400 years in a convent and 50 in Hollywood".

Stockton, California was founded in 1849 during the California Gold Rush. Though Stockton is 75 miles from the ocean, it is a port city, with ocean going vessels visiting the port daily. The waterways that connect to the port are known as the California Delta and provide access to over 1,000 miles of waterways open for fishing and recreation. Stockton is located in the Central Valley, about 90 minutes from San Francisco and 2 1/2 hours from Yosemite National Park. Stockton is surrounded by rich agricultural land with many farms and wineries available to visit.

Known as one of the imperial cities of Morocco, the opulent city of Fès is the country's oldest city, and it is split into two areas – Fès-el-Bali (Old Fes) and Fès-el-Djedid (New Fes) – as some mystical fusion of an ancient Islamic past and the French-influenced present. The endless Medina, which contains 9,500 streets, sells everything from jewellery to furniture, crafts, carpets, leather goods and spices.