Ulm, Germany, a picturesque city on the banks of the Danube River, offers a rich tapestry of history and modern charm. Dominating its skyline is the Ulm Minster, home to the tallest church steeple in the world at 161.5 meters (530 feet). This Gothic masterpiece invites visitors to climb its 768 steps for a breathtaking panoramic view of the city and the surrounding countryside.

Nestled in the foothills of the Black Forest, Baden-Baden is Germany's ultimate spa destination, famous for its luxurious thermal baths and charming Belle Époque architecture. This elegant town, whose name literally translates to "Baths of Baden," has attracted visitors seeking relaxation and rejuvenation for centuries.

Washington, D.C., the vibrant capital of the United States, offers a perfect blend of history, politics, and culture that makes it a must-visit destination for travelers. Known for its iconic landmarks, such as the Lincoln Memorial, the Washington Monument, and the U.S. Capitol, D.C. offers endless opportunities to explore the country’s history through its architecture and museums.

Red Sea beaches, world-class snorkeling and spectacular desert environments are all reasons to visit the port city of Aqaba, Jordan. Take a quick walk from the city's lovely waterfront promenade and behold its Old Town, which features the 14th century Mamluk Fort and the Aqaba Archaeological Museum.

An essential passageway between the Atlantic and Pacific Oceans, the Panama Canal is an extraordinary technological landmark and a testament to human innovation. Built in the early twentieth century by American engineers, the canal weaves through the Panamanian isthmus and allows easy access for commercial freighters and cruise ships alike.

You'll know why picturesque Grenada is known as the "spice island" when you notice the scent of nutmeg, vanilla and cocoa in the air. Grenada's waterfalls, lush rain forests, volcanic crater lake, tiny villages, cocoa, nutmeg and banana plantations, rum distilleries, scenic hiking trips, pristine coral reefs, and hidden-away unspoiled beaches all make Grenada one of the most popular ecotourism destinations for those who like to discover off-the-beaten-track natural beauty and charm.