The debate has heated up in recent years, with some calling for the removal of Confederate monuments, while others argue they're an important part of our history.

Wildfires have already wrecked havoc across the US this year, and some areas are more at risk than others. California faced ...

International Boundary Monument 258 stands as a historic symbol at the border between the U.S. and Mexico, marking the birth of California's shape.

A weathered sign in the Minnesota River Valley proudly proclaims: “World’s Oldest Rock.” Erected in 1975, it marks a 3.8-billion-year-old gneiss — or so scientists thought.

The maps allow us to see what the most forested places in the U.S. have in common. Zooming in on a few different examples, the first thing you’ll notice is that tree cover depends heavily on the local ...

Colorado has mostly straight borders, which makes it look like a box on maps. These lines follow latitude and longitude, so ...

The Ho Chi Minh Campaign Museum honors the final days of the war with one of Vietnam’s rarest national treasures.