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.

For Donald Trump, it might have been 123 years ago – when William McKinley was president. Yes, William McKinley – the one you probably forgot right after the AP U.S. History exam. “If you asked most ...

The dream of every wanderlust-filled traveler – conquering all of the U.S. national parks in the contiguous United ...