New artwork will be appearing across the city of Erie, but the pieces are revealing something most residents have not seen.

When the Berlin Wall went up overnight, National Geographic correspondents were on hand to document a city that became a ...

Another spectacular eruption at one of the most active volcanoes in the world has destroyed the camera volcanologists use to ...

Hawaii's KÄ«lauea volcano erupted for the 38th time in a year on Saturday, shooting a rare triple-fountain stream of lava as ...