Ohio’s hiking trails are beautiful. Showcasing the state’s natural beauty and diverse landscapes, these special routes always renew our appreciation for the Buckeye State. Yet there are a handful of ...

The longest railway tunnel in the world is a 35-mile long journey located in the south of Switzerland surrounded by the ...

Add Yahoo as a preferred source to see more of our stories on Google. Workers inside one of the Hudson River rail tunnels. (Courtesy of Amtrak) Every night, about 20 to 30 workers head inside the rail ...

Researchers at Xidian University in Xi'an, Shaanxi province, have utilized long-range radar to inspect full cross-sections of ...