Astonishment at the unexpected sight of you might cause him to throw up his hands?

Yet it was unsettling, like the unexpected sight or smell of some great beast.

As Tom poked his head up over the side, it was to be met with a unexpected sight.

But at that moment my attention was drawn to an unexpected sight.

His eye was immediately caught by an unexpected sight, something he hadn't seen before.

Whoever came out of room 213 would be greeted by another unexpected sight.

The unexpected sight of herself in a long mirror gave Nancy a start.

The lifting of the hat had revealed an unexpected sight.

His sword still poised, he stared at a strange, unexpected sight.

Tom and Bud in the control house saw him move toward the door, but the next instant were diverted by an unexpected sight.