Ras Mkumbuu Ruins
Ras Mkumbuu Ruins ( Magofu ya mji wa kale wa Ras Mkumbuu a cikin Swahili ) suna cikin gundumar Chake Chake a yankin Kudancin,Pemba . Suna kwance kusa da ƙauyen Ndagoni a ƙarshen wani dogon ƴan ƴan ɗimbin ɗimbin tsibiri da ake kira Ras,Mkumbuu, wanda ke arewa maso yammacin garin Chake-Chake .   Rushewar ta samo asali ne tun daga karni na 9 AZ kuma an yi watsi da ita a karni na 16, kodayake akwai alamun cewa an gina su bisa tsofaffin tushe. Wani abin lura a cikin wadannan rugujewar akwai na wani babban masallaci wanda ya kasance mafi girman tsarin irinsa na wani lokaci a yankin kudu da hamadar sahara. James Kirkman, masanin ilimin kimiya na kayan tarihi na farko da ya tono a nan cikin shekarun 1950, ya ba da shawarar danganta bincikensa da "Qanbalu" da Balarabe mai binciken Al-Masudi ya ambata a wajen 900 amma ya kasa tantance ragowar tun kafin karni na 13.  Yiwuwar gano tsibirin Pemba gabaɗaya musamman Ras Mkumbuu tare da Qanbalu har yanzu ana tattaunawa.

Duba kuma 

 Mazaunan Swahili na Tarihi

Nassoshi 

 Finke, J. (2006) Jagoran Jagora zuwa Zanzibar (bugu na biyu). New York: Jagorori masu banƙyama.