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.

Sigiriya, in central Sri Lanka, is an ancient rock fortress and one of the country’s most iconic archaeological sites. Rising nearly 200 meters from the surrounding plains, the massive granite column is crowned by the ruins of a royal palace built in the 5th century CE by King Kasyapa.

Nestled along the south bank of the Danube, this historical Austrian city bursts with charm. A favorite stop on European river cruises, the city's most famous attraction is Melk Abbey, which dates back to the 11th century. The original Benedictine structure was lost to fires and foreign invasion, then rebuilt during the 18th century in lavish Baroque style, including a library and inner church covered in magnificent frescoes and gilded fixtures.

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

Naivasha, a charming town in Kenya's Rift Valley, offers a unique blend of natural beauty and cultural experiences. At the heart of this area is Lake Naivasha, a freshwater lake renowned for its abundant birdlife and picturesque scenery. Visitors can embark on boat rides to spot hippos and various bird species, including the elusive African fish eagle.