Bulgaria is a republic in southeastern Europe. The capital and largest city is Sofiya. Bulgarian culture has been influenced successively by Byzantine, Greek, Russian, and Western cultures.

Germany offers a wide range of experiences, shaped by centuries of history, regional traditions, and striking landscapes. In Berlin, the past and present share the same streets. Visitors can walk along remnants of the Berlin Wall and then explore a thriving street art scene in neighborhoods like Kreuzberg and Friedrichshain. The city's Museum Island, a UNESCO World Heritage Site, houses ancient artifacts and 19th-century masterpieces just a short walk from modern coffee shops and rooftop bars.

Southeast Spain's seaport of Cartagena is a large naval base on the Mediterranean coast. The city was founded in 220 B.C. and boasts Roman ruins, mosaics and murals.

Must-sees in Seville include the landmark palace Royal Alcázar of Seville, the Gothic, bell-towered Catedral de Sevilla, and Plaza de España, an architectural marvel with Moorish, Baroque and Renaissance influences. Meanwhile, Museo del Baile Flamenco is the place to learn about flamenco dancing culture.

Esztergom is one of Hungary’s oldest and most historically significant towns, located along the Danube River just an hour north of Budapest. It was the country’s royal capital during the Middle Ages and the birthplace of its first king, Saint Stephen. Today, visitors are drawn to the Esztergom Basilica, the largest church in Hungary. Its dome rises over 70 meters high and offers panoramic views of the river, the surrounding hills, and neighboring Slovakia across the Mária Valéria Bridge.