Valle de la Luna.

Just 10 kilometers from the bustle of central La Paz, Valle de la Luna is a dramatic, highly eroded maze of canyons and spires that feels entirely detached from the surrounding city. Over centuries, wind and rain have carved the area's soft clay and sandstone hills into a surreal badland of towering chimneys, deep gullies, and sharp, needle-like obelisks. Local lore even claims Neil Armstrong named the site after noting its resemblance to the lunar surface. Visitors can navigate this fragile, almost vegetation-free terrain via two distinct walking loops—a quick 15-minute path and a longer 45-minute trail—leading to various viewpoints. It is an ideal half-day trip, especially in the late afternoon when the low-slung sun casts deep, dramatic shadows across the cream and reddish-brown ridges.