Just outside of Tucson lies Saguaro National Park, which is home to hundreds of saguaro cacti, the iconic symbol of the old West. There are endless scenic hikes and wildlife habitats, and the Arizona-Sonora Desert Museum isn't to be missed. The star of the park, of course, are the cacti themselves, and there are few more beautiful sights than seeing them silhouetted against the beauty of a magnificent desert sunset.

A tributary of the Amazon, the Napo River (Río Napo) originates in the east Andes mountains. It flows east through Ecuador, then southeast into Peru, where it joins the larger river roughly 50 miles downstream from Iquitos.

Located on Ecuador's central coast, Manta is a port city frequented by many South American cruises. Manta is known for its delectable seafood and variety of pleasant beaches.

Porto is a spectacular and inviting city, and one of Western Europe's rising travel destinations. History, nightlife, attractions and excellent tourist accommodations distinguish this coastal city.

Athabasca Glacier is one of the most accessible glaciers in the Canadian Rockies, located in Jasper National Park along the Columbia Icefield Parkway in Alberta. It forms part of the Columbia Icefield, a vast area of ice and snow that feeds several major river systems. The glacier extends down from the icefield between rugged mountain peaks, with its lower section visible from a marked viewpoint and trail.