Rochester Independent College

In others, archeologists have been able to examine exactly what someone placed inside hundreds of years ago.

One of the more recent and unusual examples was discovered beneath Rochester Independent College in England.

The bottle was originally excavated in 2004 from a 17th-century privy, but was not recognized for what it was until years later.

When it was examined, researchers found a collection of objects inside, including copper nails, a coin, a tooth, and hair.