Unearthing the secrets of a grassy mound at Nashville's airport

We got a question about a grass-covered mound — or building? — at the corner of Thompson Lane and Vultee Boulevard, near Nashville's airport and the iconic gold box of a building known as International Plaza. Educator and sixth-generation Nashvillian Sonia Fernandez LeBlanc is a big Curious Nashville fan — such a fan that she knew we had slowed down on answering questions in the last few years.…