what was once so important

This is an old picture of the London Stone, it used to mark the city limit of London England. Supposedly all roads were measured by their distance from this marker. Here in Victoria we have something similar in that we have pubs still named for their mileage from the old Fort - The Four Mile House, The Six Mile House and even The Seventeen Mile House where the dusty, thirsty traveler could stop for a beverage and maybe an evening's accommodation, if he was on his way to a further spot along the coast.

The London Stone was once a vital measurement for the country but it got shifted around, lost, found then lost to memory again only to resurface in a display at the foundation wall of a bank. I guess what I'm trying to say is something that seems so permanent as a milestone - literally made of stone - is only a big rock once the idea behind it gets forgotten.