Orderly entry & exit of paying public.
Site outside the fence would have concession stands serving sheep parts and beer.
Pretty much nailed it.
After the sheep parts and beer, no one cared about going in, they figured they’d have thousands of years to see the stones. :^)
A megalithic MegaChurch?
And keeping wagons and sleds out in the paid “parking lots” beyond the wall. ;)
***concession stands serving sheep parts and beer. ****
BRIAN: Larks’ tongues. Wrens’ livers. Chaffinch brains. Jaguars’ earlobes. Wolf nipple chips. Get ‘em while they’re hot. They’re lovely. Dromedary pretzels, only half a denar. Tuscany fried bats.
BRIAN: Larks’ tongues. Otters’ noses. Ocelot spleens.
REG: Got any nuts?
BRIAN: I haven’t got any nuts. Sorry. I’ve got wrens’ livers, badgers’ spleens—
REG: No, no, no.
BRIAN: Otters’ noses?
REG: I don’t want any of that Roman rubbish.
JUDITH: Why don’t you sell proper food?
BRIAN: Proper food?
REG: Yeah, not those rich imperialist tit-bits.
BRIAN: Well, don’t blame me. I didn’t ask to sell this stuff.
REG: All right. Bag of otters’ noses, then.
FRANCIS: Make it two.
REG: Two.
Yes, one of the first tourist attractions.