An Eastern city of Turkey, known in ancient times as Amida, spreads across a basalt plateau close to the banks of the Dicle River. The black basalt triple walls which encircle the old town give the city a rather ominous appearance.

Together with neighboring Glacier National Park in the United States, Waterton Lakes National Park is part of the world's first international Peace Park, which was recognized as a UNESCO World Heritage Site in 1955. The Waterton-Glacier Peace Park protects an important biological crossroads where the Rocky Mountains reach their narrowest width. Waterton's bedrock is much older than that of the mountains to the north found in Jasper and Banff.

Abilene is no-nonsense and traditional, but it's just as capable of having a good time as any rip-roaring cowpoke. When you're in Abilene, take time to see the Abilene Zoo, particularly the Texas Plains exhibit, a unique collection of species native to that part of the country (if you've never seen a javelina, here's your chance).

New York City is a city that pulses with movement, sound, and stories at every corner. Whether it's the echo of footsteps under Grand Central Terminal’s iconic ceiling or the quiet shuffle of chess pieces in Washington Square Park, every detail is part of a larger rhythm. New York’s cultural offerings are unmatched in scope. A single day could include a visit to the Museum of Modern Art, a Broadway matinee, and live jazz at an underground club in the Village.

Alberobello in southern Italy’s Puglia region captures the imagination with its distinctive trulli houses. These structures were built using a dry-stone technique passed down over centuries, without mortar or cement, and their unique form comes from layer upon layer of limestone nestled from nearby fields. Alberobello’s trulli are so remarkable that in 1996 the historic center was inscribed as a UNESCO World Heritage Site, where more than 1,600 of these buildings still stand.

Mount Rainier National Park is centered on Mount Rainier, a massive glaciated volcano rising above the forests and valleys of Washington’s Cascade Range. The mountain dominates the surrounding landscape, with glaciers, snowfields, alpine meadows, old-growth forests, rivers, and waterfalls extending across the park. Its varied elevations create distinct environments, from dense lowland forest to open subalpine terrain and rugged alpine slopes.