Copper River, Alaska's fourth largest river travels from the dry interior climate to the temperate rainforest along Prince William Sound.

Donji Milanovac is a gateway to the Iron Gates Gorge, one of the most stunning natural attractions in the region.

Andalsnes is your starting point for a ride on the Trollstigvein (troll's path), a zig-zag drive up mountains and over waterfalls that's out of this world.

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.

In the heart of Oman lies Nizwa, a city once considered the country’s capital and a hub of learning and trade. Its iconic round fort, built in the 17th century, remains one of Oman’s most visited landmarks.