Attention AP U.S. history students: An animated map resurfaced this week ... the borders of the United States remained something of a debate. There was controversy as to whether a small strip ...

Enjoy this cool animated map that shows the formation of the United States, territory by territory, from its first incarnation to the incorporation of Hawaii on August 21, 1959. Make sure to click ...

An curved arrow pointing right. It didn't take long for the US to begin expanding westward after winning independence from British rule. By the mid-1800s, the country had pushed its territorial ...

US state and county boundaries have been drawn and redrawn countless times since 1629. Now a group of historians has created a 30-second animation revealing how these regions have transformed over ...

The US's railroad network is made up of around 140,000 miles of track, but many of our trains are slow and outdated. Over the last couple of decades, countries like China, Japan, the UK ...

Drought conditions have been at record levels in the contiguous United States for much of July ... monitoring drought conditions in 1999. The animated map below shows the spread of drought ...

CHICAGO (CBS)-- The melting snow and ice gradually revealed the damage done underneath, a pock-marked moonscape of destruction on the city's streets. There have been nearly 260,000 pothole repair ...