A massive landmass called Zealandia was submerged beneath the southwest Pacific Ocean, and geologists took up the task to map the unknown region.

The historic core of America's auto industry around Detroit still contains many counties with vehicle plants and high concentrations of export potential. The Carolinas' 20th-century textile mills ...

Most of us grew up looking at world maps that dramatically distorted the actual size of countries, and we had no idea. In ...