The granddaddy of English geoglyphs dates back to the late Bronze Age.

This sacred site lives up to its name with its majestic, color-splashed sandstone formations.

An amalgam of precariously balanced boulders, ancient petroglyphs, and Buddhist shrines.

These glyphs have long been attributed to ancient Egyptians, or maybe they're just a hoax.

These ancient pecked images are among the oldest and best-preserved in Mongolia.

A massive collection of petroglyphs dating back some 40,000 years.

Resonant stone, that has been played since prehistoric times.

One of the only two archaeological sites in Japan to feature petroglyphs, which some believe to be a long-lost writing system of the gods.

These natural wonders have taken millennia to form into the stunning marvels they are today.

These ancient giraffes are the largest known animal petroglyphs in the world.

This remote sandstone cliff has one of the richest collections of Livonian petroglyph marks.

Tens of thousands of ancient rock carvings hidden in the heart of a French national park.

Despite the groans of archaeologists, this astounding groups of Bronze Age petroglyphs have been painted red for tourists.

These rock drawings in the Côa Valley also create an ancient optical illusion.

Stop by, and you'll receive a map to two well-preserved ancient petroglyph sites.

Several petroglyphs are all that remain of an ancient pyramid.

Images chiseled into the basalt here date back an estimated 300 years.

At this beautifully preserved Pre-Hispanic site, you can see ancient petroglyphs with depictions of llamas and alpacas.

In the Middle Ages, villagers would sound this stone trumpet to boost fertility and coax fish to shore.

Thousands of volcanic rocks carved 1,000 years ago.

Mysterious "dots" seen from a satellite in southeast Peru.

Low tide reveals 8,000-year-old rock carvings in Southern Alaska.

Pre-Incan aqueduct amidst a stone forest in Peru.

Mysterious ancient petroglyphs carved on a glacial boulder at the tip of Bainbridge Island.