Bustling Mine Under Kansas City

After more than a half century, an underground industrial park known as SubTropolis is still bustling under Kansas City, Mo.

The park opened for business in 1964 in an excavated mine and is going strong, attracting tenants with the lure of lower energy costs and cheap rents, Patricia Clark reports on Bloomberg.com.

Today, more than 1,000 people spend their days in the mine, which is the size of 140 football fields.

For more, including an intriguing slide show: http://kenallensforum.blogspot.com/