In North America quite likely it is Niagara falls. The incredible tonnes of water that flow over the cliffs each year erode it by a few feet a year. In that sense it is moving the land mass backward.
The Statue of Liberty in New York City is an American landmark that might be perceived as moving backward when viewed from certain angles due to its design and the way it stands on Liberty Island. However, it is a stationary structure and not physically moving.
Niagara falls
the opposite of moving forward.
When something is moving backwards and forwards, it is typically referred to as oscillation or vibration.
Niagara Falls
niagara falls
by moving there legs forwards and backwards
Yes, everything on the Earth's surface is very slowly, moving backwards.
The celestial object that appears to move backwards among the stars is a planet in retrograde motion. This happens when a faster-moving planet "laps" a slower-moving outer planet from the viewpoint of Earth, causing it to look like it is moving backwards relative to the fixed stars in the sky.
going in reverse regressing / regression
grand canyon
Their called epicycles