Rock formations

3 wonders

Stone shaped by wind, water, and deep time.

Biri Rock Formations, Biri Island, Northern Samar, Eastern Visayas

Biri Rock Formations

Biri Island, Northern Samar, Eastern Visayas

Massive sandstone rock formations on a remote island where the Pacific Ocean meets the ferocious San Bernardino Strait — sculpted over millennia into cliffs, arches, and tidal pools battered by giant waves.

Chocolate Hills, Bohol, Central Visayas, Philippines

Chocolate Hills

Bohol, Central Visayas, Philippines

More than 1,200 near-symmetrical grass-covered mounds spread across the interior of Bohol, turning chocolate-brown each dry season — a karst landscape unlike anywhere else on Earth.

Þingvellir (Thingvellir), Þingvellir National Park, Southwest Iceland

Þingvellir (Thingvellir)

Þingvellir National Park, Southwest Iceland

A rift valley where the North American and Eurasian tectonic plates are visibly pulling apart — a landscape of fissures, lava plains, and clear spring-fed water that is also the birthplace of Iceland's parliament.