I'm pretty sure it has to be those shoes that has the wheels on them, because no privately owned organization would allow them unless it was specificly made for rollerblades.
This includes amusement parks, commerical stores, office buildings... etc.
Imagine the insurance they'd have to take out to cover the liability if somebody got hurt. It's a risky "sport" and is limited to either skate parks, or just places owned by the government, state, city, county... etc.
Most parks have signs that say "no scooters, no rollerblades, no bikes, & no skateboards allowed" posted somewhere.
If not... it's just plain common sense, people!