Roraima: The Real ‘Lost World’ That Inspired Conan Doyle and Pixar

3,300-foot walls, plants found nowhere else, and a weeklong trek: inside the tepui behind Pixar’s ‘Up’

The Catatumbo Lightning: The Storm That Guided Sailors for Centuries

Up to 297 nights a year of storms over Lake Maracaibo: how it forms and how to see it.

The Aztec Treasure That Left Mexico 200 Years Ago — and Is Finally Back

A 16th-century manuscript details the fall of Tenochtitlan, and for the first time in two centuries, it can be viewed in its homeland.

The Tilcayo: The Small Wild Cat That Hid in Bolivia for a Million Years

It is the first wild feline species described in a century — and its story began with what looked like a stray kitten.

Five Mexican Cities Travelers Are Choosing Over the Capital

Puebla, San Cristóbal de las Casas, Mérida, Zacatecas, and Puerto Vallarta prove that Mexico is much more than its capital.