Explore stunning cave hikes in Illinois with towering sandstone cliffs, hidden rock shelters, and dramatic natural arches waiting along scenic forest trails.

Explore Effigy Mounds in Iowa, where ancient Indigenous earthworks, forested trails, and Mississippi River views reveal America’s earliest stories.

A Quebec landowner says huge stone formations on his property could point to evidence of a previously unknown chapter in ...

If someone showed you photos of Paint Mines Interpretive Park without context, you’d probably guess they were taken on ...

There are many open questions about how our planet formed 4.55 billion years ago: When did plate tectonics start? When did the Earth's mantle begin to vigorously circulate in a process called ...

Utah’s spellbinding red-rock desert and high-altitude forests are just a few of the wonders to discover in heavenly Zion.

You don't have to travel far to see some of the world's most stunning natural wonders. From shimmering turquoise lakes to majestic mountaintops, these are the places in each state that are sure to ...

While hiking deep in the Great Smoky Mountains National Park, explorers stumbled upon bizarre, ancient-looking rock formations—with no clear origin or explanation. Were they built by early settlers, ...

NASA’s Curiosity rover investigates boxwork rock formations on Mount Sharp to gather evidence of ancient groundwater on Mars.

In the wild, shelter is a precious commodity, providing protection from predators, harsh weather conditions, and a safe place to raise young. While many animals build elaborate nests or dig burrows, a ...

In 1991, my father and I decided to host a unique event to preserve a Native artform that began in the Southwest and ...

WILLCOX, AZ — Rising from the high desert of southeastern Arizona, Chiricahua National Monument offers some of the state’s most striking and lesser-known natural scenery. The park is known for its ...