A mystery lies underneath the waters off the coast of Cuba in the form of enormous stone structures. Since its discovery in 2001, researchers have been confused about these stone structures' identity, ...

This video shows an ancient circular stone structure, likely Grianán of Aileach in County Donegal, Ireland. The ring-shaped fort sits on top of a hill, surrounded by open grassland and low vegetation, ...

In 2017, retired French geologist Yves Fouquet was looking at charts of the ocean floor around Sein Island that had been produced via laser mapping. To Fouquet, the formation – stretching 120 meters ...

In the summer of 1976, a ground fire burned through a vegetated area on the island of Guernsey, revealing a granite slab protruding from a high mound of earth. The ensuing excavation revealed an ...

A small stone building next to a branch library on the Northwest Side will be named the “Woller Outpost,” harking back to the site's history as a German family farm, under a city proposal. Residents ...

The vast majority of our planet’s oceans remain unexplored, hiding secrets that challenge everything we thought we knew about human history and geology. Every so often, sonar technology or daring deep ...

A dog walker along the U.K. coast found stone structures later identified by archaeologists as centuries-old bait tanks, photos show. Photo from Sarah Winlow via Northumberland Coast National ...

Add Yahoo as a preferred source to see more of our stories on Google. Julie Kemper-Kunkle is on a quest to document all the stone structures she can discover in York County. In two years, she’s ...

Nearly 400 mysterious ancient stone structures have been identified in the Saudi Arabian desert by an Australian researcher using Google Earth. David Kennedy, whose team has spent decades recording ...

Julie Kemper-Kunkle is on a quest to document all the stone structures she can discover in York County. In two years, she’s researched about 1,000 houses, schools, churches, mills and taverns. Her ...