Where should one observe the Moon to best enhance the three-dimensional appearance of its surface features?

Answer

Near the terminator.

Observing the Moon along the line separating day and night, known as the terminator, maximizes the shadows cast on the surface, thereby enhancing the perception of depth and three-dimensionality.

Where should one observe the Moon to best enhance the three-dimensional appearance of its surface features?
Usesastronomytelescopeobservationoptics