ABERDEEN -- Scotland's third-largest city (pop. 187,000) is characterized by buildings of beautiful white granite. Set beside the North Sea, Aberdeen is both a university town and the capital of the Scottish oil boom. It is also one of Scotland's largest seaside resorts (though its appeal is confined to those who like their water well-chilled).

Yellowstone National Park, America's first national park, stands as a stunning testament to nature’s raw power and beauty. Located primarily in Wyoming, with portions extending into Montana and Idaho, Yellowstone offers visitors a chance to witness incredible geothermal wonders, such as the famous Old Faithful geyser that faithfully erupts every 60 to 110 minutes.

Jellyfish Lake is a shadowed oasis hidden among the mushroom-like Rock Islands of Palau. This forest‑fringed saltwater lake invites visitors to float with millions of gentle, stingless jellyfish that glow like drifting amber clouds under emerald light. The lake formed about 12,000 years ago, when rising seas flooded an ancient reef basin that was gradually cut off from the ocean. Over centuries, its jellyfish evolved in isolation, shedding their stings and multiplying without predators in sight.

Rhode Island may be the smallest state in the U.S., but it offers an outsized variety of experiences, from colonial history to coastline escapes. Founded in 1636 by Roger Williams as a haven for religious freedom, the state still reflects its independent spirit. In Providence, travelers can visit the John Brown House Museum to explore the city’s role in early American commerce, or walk Benefit Street, lined with preserved 18th- and 19th-century homes.

The commercial and cultural center for the Ruhr region on the Rhine River, Duseldorff is also the site of the Felderhof Cave where Neanderthal man was found in 1856.