A large gallery dug into the rock and left unfinished in July 1939

The Hall of Records, the most hidden part of the famous Mount Rushmore monument

Mount Rushmore National Memorial is by far one of the most famous and most spectacular monuments in the United States.

The Goddard Space Flight Center has published it in two videos with 4K quality

NASA shows what the phases of the Moon will look like in both hemispheres in 2025

Some of these places are dangerous: they have drops of more than 700 meters

A leisurely 35-minute tour of the spectacular coastline of the Kingdom of Norway

The vehicle was landed in 1940 and was last seen in 1958

Antarctic Snow Cruiser, a huge exploration vehicle that disappeared in Antarctica

The curious history of Camp Bouse, in Arizona, and its current state

The remains of a secret military base where the US tested a light weapon in World War II