It could be Stonehenge, or the Great Pyramids of Egypt, possible Machu Picchu.
The famous megalith is Stonehenge, located in Wiltshire, England. This prehistoric stone circle, comprising large standing stones arranged in a circular layout, dates back to around 2500 BC. Stonehenge is renowned for its astronomical alignments and is believed to have served as a site for rituals and ceremonies. It remains one of the most iconic and studied ancient monuments in the world.
"Megalith" means "large stone"; an antonym might be "pebble".
A megalith is a large stone that forms a prehistoric monument, such as a stone circle or chamber. Stonehenge is a well-known Megalith.
builders
A megalith is a large stone that has been used to construct a structure or monument, either alone or together with stones.
The Collins dictionary defines megalith as a stone of great size, especially part of a prehistoric monument.
To unlock Jet, you need to beat the Great Megalith time challenge with a 5 star ranking.
Mycenaean
a megalith
A megalith is a large stone which has been shaped and set up. Megaliths are used in ancient monuents such as Stonehenge.
The most famous is probably Stonehenge. It's a probable man-made formation built hundreds of years ago from rock found 100 km away.