Following the overlay process, the accessibility information was aggregated to state and national levels for further analysis. In the United States, adults have slightly better overall geographic ...

The first national park in the United States marks a milestone ... and ensuring protection of cultural sites. National Geographic’s vast photographic archive includes William Henry Jackson ...

To contain the current outbreak, some states are following a new playbook to fight the infectious disease. Measles cases continue to grow in the United ... While a 0.5-point national increase ...

Eliza Scidmore, National Geographic’s first official female ... Japan a shipment of flowering dogwoods, native to the United States, with bright white blooms. Most of the original trees are ...