How much does it cost to go to the St Louis Arch?

Anyone know how much a person it cost to go to the top of the St.Louis Arch?How much does it cost to go to the St Louis Arch?
Adults are $10.00 and chiildren from 3-15 are $5.00. Till April 30th if you purchase tickets on line you will get free parking for one car in the Arch parking lot.
$10 for adults. I can't remember the kid price.How much does it cost to go to the St Louis Arch?
$8.00 but call to make sure
ive been there before but cant remember