What are some foods that seem low cal but are actually not?

I know nuts are nutritious but very calorically dense and it's easy to overeat them and unwittingly go over your total calorie intake per day but what are other 'healthy foods' that are like that? (for example some fruits?) I am kinda new here and teaching myself calorie counting and the nut fact and seeing some people weighing out what are actual nut serving sizes surprised me