In Ireland they are called sidhe, or fairy mounds, and are purportedly the homes of the little people.

Lexicographers have traced the name to the Gaelic word for "fairy mound."

While they are there, the cousins challenge an ancient law by sleeping in a fairy mound.

Fairies were thought to steal humans on Samhain and fairy mounds were to be avoided.

They crossed the path through the herb garden and descended into me dark of the fairy mounds.

You'll never find me disturbing a fairy mound.

Legend claims they were driven "under the hills" into "fairy mounds."

The sounds of mermaids singing, or in some versions, music from a fairy mound cause her to leap into the water and drown.

They are said to live underground in fairy mounds, across the western sea, or in an invisible world that coexists with the world of humans.

A proper fairy mound it is, no doubt.