We know the usual infrastructure projects and the overspending on defense. I'm more interested on the things that benefit you directly like free things you get out of your taxes. I know of the free education until college or university where you have to pay. What else is there?
In Europe, their taxes give them free education even college and if the job is of high demand, you get allowance to study that job. Free healthcare. Child benefits. Pension.
From what i see, Europeans get more for the taxes they pay which is supposedly the way it's suppose to work. Americans pay taxes but you hardly get it back. IRS even makes you calculate your own taxes.