Dotted with lighthouses along its shoreline, Portland, Maine is a coastal gem in the northeastern United States and a veritable paradise for lovers of fresh seafood, craft breweries, and small-town charm. At the center of downtown Portland, the Old Port neighborhood boasts a number of unique and historical buildings, trendy restaurants and bars, and picturesque views of the Portland Harbor.

The Whitsunday Islands sit in the heart of Australia’s Great Barrier Reef, where more than 70 islands rise from wide blue seas and offer an invitation to explore. Whitsunday Island itself is the largest of this group, known internationally for its ribbon of white silica sand stretching over seven kilometers at Whitehaven Beach. This sand feels cool underfoot even in warm sunshine because it’s made of nearly pure silica carried there by ancient ocean currents.

The Yangtze River, a magnificent artery of China, stretches over 6,300 kilometers (3,917 miles) from the Tibetan Plateau to the East China Sea. As the longest river in Asia and the third longest in the world, it weaves through breathtaking landscapes and vibrant cities, making it a prime destination for travelers seeking both adventure and cultural immersion.

Krk, the largest island in the Adriatic Sea, offers a captivating blend of historical charm and natural beauty. The city of Krk, located on the island's southwestern coast, is renowned for its rich cultural heritage and stunning coastal scenery. The city's historical heart is its Old Town, where ancient walls and charming narrow streets lead visitors through centuries of history.

Garden of the Gods, located in Colorado Springs, is a breathtaking natural wonder renowned for its stunning red rock formations and striking geological features. This public park is famous for its towering sandstone spires, some reaching heights of over 300 feet, which create a dramatic contrast against the backdrop of the snow-capped Pikes Peak.