Dallas officially welcomed Dar es Salaam, United Republic of Tanzania, as its newest Sister City on Tuesday, July 22.

Dar es Salaam, now Tanzania’s commercial city is the leading capital with 242 hotels of international standards, ranging from three to Five Star class.

Dallas Mayor Eric Johnson visited Arusha, Tanzania to discuss direct flights and bolster cultural and economic ties.

But as NPR's Eyder Peralta reports, in Tanzania's largest city, the soundscape is dominated by something unexpected. EYDER PERALTA, BYLINE: This is the inescapable sound of Dar es Salaam.

“My path to Tanzania started when I stood up on my Kindergarten career day at Eliot here in Tulsa, and eventually went to the city of Mwanza in 2002,” Mainsprings founder Chris Gates said.