Nigeria, located in West Africa, is a country known for its diversity in culture, language, and landscapes. It is home to over 200 million people, making it the most populous country in Africa.

A charming city nestled on the banks of the Rhine, Mainz, Germany lies southwest of Frankfurt and is replete with historic buildings and famous museums. The city's Altstadt district meets the river's edge and boasts a variety of beautiful and fascinating landmarks.

La Paz is Bolivia’s administrative capital, a city that clings to the walls of a canyon, rising from 3,600 meters to over 4,000 meters above sea level. That dramatic geography means it holds the title of the highest capital city in the world. From the crowded streets of the valley floor to the windswept plateau of El Alto, La Paz is a city of striking contrasts.

Replete with windmills and old-world charm, the village of Kinderdijk lies east of Rotterdam on the Lek River and is a popular stop for European river cruises. Home to the largest concentration of old windmills in the Netherlands, Kinderdijk was designated a UNESCO World Heritage Site in 1997.

This sustainable capital city will charm you with its beautiful sea-facing landscape, diverse architecture and world-famous design. While the city is modern and lively, the archipelago and green forests are quickly reached via an efficient public transportation system for those looking for nature.