In Edinburgh, an ancient fortress looms, the hills are steep, and travelers delight in the hidden charms of the Old Town and New Town. Hike to find spectacular views on Arthur's Seat, shop the downhill streets of the Royal Mile, and visit Edinburgh Castle, an imposing royal fortress that defines this city's skyline.

Stretching 277 miles in length and more than a mile deep, this vast canyon reveals layers of geologic time stacked like pages in a book. Standing on the South Rim, visitors can look out over colorful cliffs and winding trails that have drawn explorers, artists, and travelers for generations. The views change with the light starting with crimson at sunrise, golden at sunset, and every hue in between.

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.

Oman stands among the oldest independent states in the Arab world, with evidence of human habitation stretching back over 100,000 years. Its capital, Muscat, rises gently against limestone hills with no skyscrapers to interrupt its skyline. Visitors find broad avenues lined with stunning buildings leading to landmarks like the Sultan Qaboos Grand Mosque and the Royal Opera House, both offering glimpses into Omani artistry and modern elegance.

Nestled between the serene waters of Lake Hallstatt and the towering Dachstein mountains, Hallstatt, Austria, is a picturesque gem that seems almost too perfect to be real. This UNESCO World Heritage site is renowned for its stunning alpine scenery and charming architecture. Wander through the narrow streets lined with 16th-century houses and experience the timeless beauty that has captivated visitors for centuries.