This Australian beach is composed of tiny shells.

Living fossils in this remote Australian bay provide a glimpse of what Earth may have looked like 3.5 billion years ago.

Constant erosion has created a surreal landscape of bleached and preserved fallen trees.

Iron Age runes and ruins hide in plain sight along this Portuguese beach.

The eerie remnants of an ancient forest were hidden under the sand for centuries.

An otherworldly, fossil-rich cobble beach holds Viking graves, cairns, and other remains.

Abandoned ships along a deserted beach feel like the set of a post-apocalyptic thriller.

When waves crash onto this section of beach, the rocks sing a song.

This Roman underground canal was the longest tunnel ever built until the late 19th-century.

The frozen treats at this Cape Town parlor are inspired by Africa's food cultures.

The largest treasure hoard in Europe is contained in a castle that was bombed out during World War II.

A unique flight of canal locks that owe their form to 19th-century cost-saving measures.

This lovely little burbling creek is actually a deadly waterway that has dragged down everyone who ever set foot in it.

This floating garden in the sky is straight out of a fairy tale, but the real thing is nothing short of magical.

At night, a grove of towering redwood trees growing through the pavement block out all light from the so-called “Dark Park” of Madrone Avenue.

The home of Ireland's last leprechauns is officially protected by the European Union.

These quintessentially English stepping stones were built for Victorian tourists.

The longest manmade tunnel in Queensland is now a beautiful trail, home to a special colony of bent-wing bats.

A breathtaking 19th-century trail overlooks Lake Tahoe.

Walk a trail through a historic Quaker town that outlawed slavery in 1777 and was a major waypoint on the Underground Railroad.

The longest non-mortared wall in the country is one man's tribute to his displaced Yuchi ancestor's five-year journey to her homeland.

A dictator's failed public works project has been reborn as two linked trails through spectacular scenery.

A trail weaves through the verses of a poem illustrated by stone sculptures inspired by Native American pictographs.

A winding medieval path was used by mourners to carry their dead to the nearest church.