Mix 2 cubed avocados, a handful of halved cherry tomatoes, the juice of 1 lime, and minced cilantro and red onion. Let sit for 20 minutes. Add salt and pepper. Eat with tortilla chips—or a spoon.

For centuries, four mummified individuals from the Colombian Andes lay in museums, their faces sealed under ornate masks. And I mean sealed shut. Now, thanks to cutting-edge digital reconstruction, ...