Londonderry, often called Derry, is a city steeped in history and charm, uniquely surrounded by remarkably well-preserved 17th-century walls. In fact, it holds the title of being the only completely walled city in all of Ireland. Strolling along these ancient ramparts offers visitors not only a glimpse into the past but also breathtaking panoramic views of the winding River Foyle and the lively streets below.

Yokohama, Japan's vibrant port city, offers a delightful blend of historical charm and modern excitement. Located just a short train ride from Tokyo, Yokohama is renowned for its picturesque waterfront and cultural attractions.

Las Vegas, Nevada, is an electrifying city where glitz and glamour meet entertainment and excitement. Known as "The Entertainment Capital of the World," Las Vegas offers an unparalleled array of attractions, from its iconic casinos and luxurious hotels to its world-class dining and live shows. The city's entertainment scene is second to none, featuring legendary headliners, cutting-edge performances, and an array of themed attractions.

Nestled in the Aburrá Valley and surrounded by the Andes mountains, Medellín offers a stunning backdrop for visitors and boasts a pleasant climate year-round, earning it the nickname "City of Eternal Spring."

A small island only 100 miles in length and 20 miles in width, South Georgia's only inhabitants are herds of reindeer, penguins, seals, and about 20 scientists who maintain the British Antarctic Survey station on the island. It lies about 800 miles east of the Falkland Islands, and is owned by the British.