Time Capsules are interesting ideas, if you remember where you put them:
In 10 days, this city plans to revisit the moment 100 years ago that President Theodore Roosevelt rode into town in a horse-drawn carriage, gave a rousing speech about the great pioneers of the Pacific Northwest and put a copper box into the cornerstone of a towering monument to Lewis and Clark.
That is, if anyone can find the box.
Portland is frantic to find the time capsule. Nobody knows exactly where it is.