wonder

Something that causes amazement or awe; a marvel.

"Wonders of the World seem to come in sevens."

Something astonishing and seemingly inexplicable.

"The idea was so crazy that it is a wonder that anyone went along with it."

Someone very talented at something, a genius.

"He's a wonder at cooking."

To be affected with surprise or admiration; to be struck with astonishment; to be amazed; to marvel; often followed by at.

To ponder; to feel doubt and curiosity; to query in the mind.

"He wondered whether penguins could fly. She had wondered this herself sometimes."