Malaysia's $100 billion ghost town is good for at least one thing: filming documentaries and shows like Netflix's 'The Mole'

• Forest City in Malaysia was used as a set for the Netflix reality show "The Mole."
• Planned as a $100 billion mega-complex, Forest City has become a ghost town with few residents.

Malaysia's $100 billion ghost city was meant to house 700,000 people. After few people moved in, developers tried in vain to make it into a tourist hub.

Now, the mega-development is serving as a set for a handful of reality shows and documentaries.

The empty city, just over Singapore's western border, was used for an episode on the second season of the Netflix reality show "The Mole," which debuted last week.

The competition-style reality series follows 12 contestants completing challenges while one of them secretly sabotages the other players. They race to grow a money pot prize and uncover who the traitor is among them.

The show's 10-episode second season was filmed entirely in Malaysia and features Forest City, Kuala Lumpur, and Tioman Island. Filming started in July last year and lasted for six weeks, local media reported.

The contestants, who come from various professional backgrounds, complete treasure hunts, free dive, and abseil down a 38-story building in Forest City.

In the third episode of the season, the show's host, the former NPR journalist Ari Shapiro, introduces Forest City: "A perfect spot for a glamorous holiday home, for those who can afford it. And most of the year, they lie empty."

The city has also featured in other recent shows.

South Korea's KBS filmed an episode of the travel reality series "Battle Trip" there, while Germany's ProSieben TV filmed a short documentary about Forest City. An Austrian documentary titled "Hungry: Tipping the Scales" was also shot there.

Announced in 2006, the luxury housing project was meant to feature apartments, a waterpark, and hotels. The whole project cost its developers $100 billion.

But eight years after construction began, only a few thousand people live there. The project has turned into a ghost town — and a major liability for its developer, Country Garden, which is facing sizable financial issues elsewhere.

As of last year, only about 15% of the planned property had been completed, while most finished apartments appear never to have been lived in.

Netflix and Forest City didn't respond to requests for comment.