<prompt> Translate the following text to EnglishKatika kona moja ya mraba huo kuna Cage, gereza la zamani lililojengwa mwaka 1806 ili kuwa makao ya mabaharia waliolala kileo au watumwa waliokimbia, na Ring, mahali ambapo wakati mmoja kulikuwa na mnada wa watumwa.  <response>: In one corner of the square are the Cage, an old prison lockup built in 1806 to house drunken sailors or runaway slaves, and the Ring, the site of the once-regular slave auction. 