The historic center of the former Army town of Campo, California, is for sale. The listing agent expects the town to go for between $5.5 million and $6 million.

Campo hasn't changed much since the 1940s: It's scattered with vacant properties, though around 100 residents still occupy its historic center.

The sale has captured the interest of movie directors, CEOs, and big tech companies. A Hollywood producer already put in an offer.

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Real estate agent Conor Brennan had never heard of Campo, California, until he got a call "out of nowhere" from the man who owns most of it, Las Vegas investor John Ray.

"He said, 'I have my own town if you want to check it out. I'm thinking of selling it," Brennan said. "I had no idea he was serious."

The area is almost a ghost town, though it's not entirely empty — its center is home to around 100 people. It comes with 28 buildings, including a post office and Baptist church.

Brennan said that at first, Ray said he wanted to work on a different listing, but that turned out to be a kind of test. When Brennan proved he was easy to work with, Ray handed him the golden goose — 16 acres of Campo.

After the San Diego Union-Tribune reported on Wednesday that the town's historic center was up for sale for the first time since the early 2000s, Brennan was quickly inundated with calls from movie directors, CEOs, big tech companies, and even horse breeders. He said he's planning to sell the town center for between $5.5 million and $6 million, but he hasn't reached a deal yet.

Here's what Campo looks like today.