Katmai National Park and Preserve lies along Alaska’s remote Pacific coast, shaped by volcanism, glaciers, and deep time. The area gained prominence after the 1912 Novarupta eruption, one of the largest volcanic events of the 20th century, which transformed the landscape and led to the creation of the Valley of Ten Thousand Smokes.

The Perfume River flows through Hue in central Vietnam, linking the city's historic districts with the surrounding countryside before reaching the Tam Giang–Cau Hai lagoon system. The river is a defining feature of Hue's landscape, passing beneath bridges, alongside gardens, and past important imperial and religious landmarks.

Calais is a port city on France's northern coast, facing the Strait of Dover at the narrowest point of the English Channel. Its location has made it an important link between France and Britain, with ferries and the Channel Tunnel connecting the region to England. The city centre includes broad boulevards, public squares, and historic buildings, while the waterfront extends toward sandy beaches and dunes.

Tonga is distinctly different to its neighboring island nations. This Polynesian kingdom, made up of 170 islands, carries a proud history that dates back over 3,000 years. On the main island of Tongatapu, travelers can explore ancient stone structures like the Haʻamonga ʻa Maui Trilithon—sometimes called the Stonehenge of the Pacific. Royal tombs in Lapaha offer a glimpse into the lineage of Tonga’s kings, while village life remains guided by customs that have changed little over centuries.

Turku, Finland’s oldest city, is a captivating blend of rich history and contemporary charm. Established in the early 13th century, Turku is renowned for its medieval architecture, including the majestic Turku Castle.

Columbus, city and seat of Muscogee County, western Georgia, a port at the head of the Chattahoochee River, opposite Phenix City, Alabama. Columbus is a regional transportation, trade, cultural, and manufacturing hub. Its many textile, food-processing, and metalworking industries are powered by hydroelectric plants on the Chattahoochee River.