Nha Trang, located on Vietnam's southern coastline, is a vibrant city renowned for its stunning beaches and dynamic culture. This coastal paradise boasts a 6-kilometer stretch of golden sand along Nha Trang Beach, where turquoise waters meet palm-fringed shores, perfect for sunbathing and swimming.

Located roughly in the center of the country, Riobamba is one of Ecuador's largest cities and the starting point of the scenic train ride to Nariz del Diablo (Devil's Nose). The city has a strong indigenous presence, which lends itself well to the open-air artisan market, and plenty of opportunities for mountainous activities such as hiking and mountain biking.

Redwood National and State Parks protect a remarkable coastal landscape in northern California, where ancient redwood forests grow alongside rivers, prairies, wetlands, and the Pacific Ocean. The protected area extends across a series of parks in Del Norte and Humboldt counties, preserving some of the tallest trees on Earth. Dense stands of coast redwoods create shaded forest environments beneath a canopy of towering trunks, while nearby coastal bluffs and beaches provide a striking contrast.

Berlin has an undeniable history. The horrors of World War II, division, reunification, revolution all profoundly impacted the city in the 20th century. Today, visitors will find a sophisticated, high-energy city with endless cultural, architectural and gastronomic attractions.

An Eastern city of Turkey, known in ancient times as Amida, spreads across a basalt plateau close to the banks of the Dicle River. The black basalt triple walls which encircle the old town give the city a rather ominous appearance.