Spanish culture has been exported the most to which part of the world?

Spanish culture has been exported the most to Latin and South America. Remember, during 1400s - 1700s Spain had a heavy hand in the affairs of its colonized areas resulting in the proliferation of the Spanish language. Additionally, Catholic missionaries from Spain frequently preached to the Native peoples across the continent resulting in the spread of Catholicism. 

The geographic feature in the westernmost corner of kenya is answer: the great rift vally