Badlands National Park stretches across southwestern South Dakota, where layered rock formations and sharply eroded spires reveal nearly 75 million years of geological history. The park’s banded cliffs and pinnacles were shaped by wind and water, exposing ancient seabeds and fossil-rich layers that have made the area one of North America’s most important paleontological sites.

Sagres sits at the southwestern edge of continental Europe in Portugal’s Algarve region, where the Atlantic’s wide horizon meets rugged cliffs and open skies. For centuries this point was linked to maritime adventure and visitors can still feel that sense of discovery in the air. Here, people like Prince Henry the Navigator gathered cartographers, shipbuilders and astronomers in the 1400s to push beyond maps of the known world and shape the early Age of Discovery from Sagres’ dramatic headlands.

A must-see in this centrally located Sicilian town is the 3rd century Villa Romana del Casale.

Krabi, located on the southwest coast of Thailand, is known for its towering limestone cliffs, warm Andaman waters, and a coastline dotted with over 150 islands. One of its most iconic sites is Railay Beach, which is accessible only by boat due to the cliffs that cut it off from the mainland. Railay is famous among rock climbers for its natural limestone formations, some of which hang directly over the sea.

West of Hiawatha National Forest, Marquette sits on the shore of Lake Superior and is the biggest city on Michigan's Upper Peninsula. Visit historic Marquette Harbor Lighthouse for spectacular panoramic views of Superior, or take advantage of snowy Marquette Mountain and a variety of winter sports at the height of Marquette's winter season.