Yerevan, the capital of Armenia, is one of the oldest continuously inhabited cities in the world, with a history stretching back more than 2,800 years. Despite its ancient roots, it feels vibrant and modern, with wide boulevards, lively cafes, and an ever-present view of the majestic Mount Ararat on the horizon.

Evidence of our nation's birth abounds in Boston, a hub of revolution that is essentially the oldest city in the United States. Visitors are compelled to walk the 2.5-mile Freedom Trail around the city center, and bear witness to 16 historical locations related to the history of America.

Arrecife, the vibrant capital of Lanzarote, Spain, offers a unique blend of modern allure and traditional charm. Situated on the eastern coast of Lanzarote, this picturesque city is celebrated for its beautiful beaches, including Playa del Reducto, which boasts golden sands and clear waters perfect for a relaxing day under the sun.

The Yangtze River, a magnificent artery of China, stretches over 6,300 kilometers (3,917 miles) from the Tibetan Plateau to the East China Sea. As the longest river in Asia and the third longest in the world, it weaves through breathtaking landscapes and vibrant cities, making it a prime destination for travelers seeking both adventure and cultural immersion.

Freiburg was founded by the Dukes of Zähringen in 1120, and the layout of streets and squares of the rapidly prospering metropolis is still impressively reflected in today's cityscape.