Saguaro National Park bristles with nearly two million of its namesake cacti in a landscape of volcanic rock backdropped by the chocolate-colored Tucson and Rincon Mountains on.natgeo.com/3icvPok

"Travel with kindness, travel with positive energy and without fear," says Jessica Nabongo. "I think what holds people back a lot of the time is fear of the unknown." #WorldTourismDay on.natgeo.com/3EXSCOb

It's #WorldTourismDay! Here's how TikTok is changing how some people approach travel on.natgeo.com/3zRZF7G

Hollywood films have given sharks a reputation of being vengeful killers. But are they really the hunters—or the hunted? on.natgeo.com/3AL7Ofm pic.twitter.com/rVtIkIcfaD

The Po River Delta region holds surprising finds, from architectural treasures to wildlife wonders, and a community of barrier-breaking women fishers on.natgeo.com/39JAMjE

A parasitic fungus discovered in a Wisconsin lake could be a natural weapon for stopping non-native crustaceans on.natgeo.com/3ugj0xQ