Glenwood Springs, Colorado, is a picturesque resort town famous for its geothermal springs. Nestled in a scenic canyon of the Rocky Mountains where the Colorado and Roaring Fork Rivers meet, Glenwood Springs will enthrall you with its natural beauty, including towering red sandstone cliffs, snow-capped mountains, and lush forests.

Seen from the train, Durham presents a magnificent sight, with cathedral and castle perched atop a bluff enclosed by a loop of the River Wera, and linked to the suburbs by a series of sturdy bridges.

Machu Picchu is a story carved into stone, perched nearly 2,500 meters above sea level in the cloud forests of southern Peru. Built in the 15th century and later abandoned, this Inca citadel was unknown to the outside world until 1911, when explorer Hiram Bingham brought it to international attention. Today, it remains remarkably well-preserved, with more than 150 stone structures, terraced fields, ceremonial fountains, and temples aligned with astronomical events.

Lake Maggiore, straddling the border of northern Italy and southern Switzerland, is the second-largest lake in Italy and one of the most scenically diverse. Surrounded by Alpine peaks and dotted with elegant towns, the lake has attracted visitors for centuries, including literary figures like Stendhal and Ernest Hemingway. The western shore is home to the Borromean Islands, a group of three small islands known for palaces, terraced gardens, and white peacocks that roam freely across the lawns.

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.