http://en.wikipedia.org/wiki/Sungbo's_Eredo

you were right , your moat is bigger


Total length of fortifications is more than 160 kilometres (99 mi). Fortifications consist of a ditch with unusually smooth walls and bank in the inner side of ditch. The height difference between the bottom of the ditch and the upper rim of the bank on the inner side can reach 20 metres[1]. Works have been performed in laterite, a typical African soil consisting of clay and iron oxides. Ditch forms an uneven ring around the area of ancient Ijebu state, an area approximately 40 kilometres wide in north-sou, with the walls flanked by trees and other vegetation, turning the ditch into green tunnel.
As a construction project, it required more earth to be moved than the Great Pyramid of Giza.
[edit]History

The Eredo served a defensive purpose when it was built in 800 - 1000 AD, a period of political confrontation and consolidation in the southern Nigerian rainforest. It was likely to have been inspired by the same process that led to the construction of similar walls and ditches throughout western Nigeria, including earthworks around Ile-Ife, Ilesa, and the Benin Iya, a 6,500 kilometer series of connected but separate earthworks in the neighboring Edo State-speaking region.

What has this got to do with religion

(some) people in Ijebu claims she was the queen of sheba. has ALL to do with religion.

You mean the Ijebu people claim she was the Queen of Eba (as opposed to Sheba)?

Can you tell us how many wraps of Eba she was able to consume in a single sitting ?

Can you tell us her preferred soup ?

This will go a long way in validating your claim.

They said sheba but I'm convinced it was eba.
I'll have to visit a proper ijebu buka to answer those questions.

^^^ Ask she of the royal buka those pertinent questions which have plagued mankind since ancient times.

Ask her too, the recipe for her soup. Since God eating is in vogue, may we dip the flesh in ancient soup.