The main and most visible feature is the plexiglas shield.

Shadow marks are a form of archaeological feature visible from the air.

The following map shows the arrangement of the visible and submerged features.

The only visible features are two tiny, lidless eyes and the mouth.

A rendered image can be understood in terms of a number of visible features.

The only features visible are the main mound and moats.

Unlike the previously known faults, the new ones are deep below the earth's surface with no visible features at ground level.

Eyes are the only externally clearly visible feature on its head.

A dark area, which I take to be an ocean, is the most prominent feature visible at this time.

Their visible features make an interesting comparison with the Mercier picture.