Jeff Goldblum has become an icon of cool quirkiness for his roles in blockbusters like "Jurassic Park" and "Thor: Ragnarok." A few days ago, he was visiting the quirky cool Motor City.

Goldblum was at Detroit Bikes on Saturday to take a close look at where their high-grade bicycles are made. On Monday, the movie and TV actor participated in a Slow Roll group ride in Detroit.

On Reddit, a photo of Goldblum at the mass bicycle ride prompted a debate over whether it was really the famous actor or just an impersonator staging a multi-day prank.

Goldblum was enthusiastic about his visit to Detroit Bikes, according to Detroit Bikes master builder Henry Ford II.

"He was really actually moved to be here, to see the comeback story," said Ford, noting that Goldblum seemed to particularly like Detroit's entrepreneurship and people.

Detroit Bikes owner and president Zakary Pashak said Goldblum enjoyed checking out the factory.

Launched in 2011, Detroit Bikes specializes in commuter bikes and describes itself as the only bike manufacturer in Detroit, with the only currently functioning, large-scale bike frame factory in the United States.

Goldblum liked what he saw. He got a USC A-type Detroit Bike bicycle for his personal use.

The Oscar and Emmy nominee might have been in town in connection with a new 12-part series announced by the National Geographic network in July 2018.

Subsequent reports have said the show will be called "The World According to Jeff Goldblum" and that it will air on the Disney+ streaming service launching in November. Disney owns the National Geographic network.

It will follow Goldblum as he travels to uncover what the news release on the series calls "the extraordinary stories behind the world's most 'ordinary things,' " such as ice cream, baseball, subways, and cereal."

And bicycles, maybe? National Geographic wouldn't comment on Goldblum's Detroit trip.

With roles in indie films along with mega-hits, Goldblum has become something of a global pop-culture idol. Celebrated both for his acting and his musical skills (he's a gifted jazz pianist), his eccentric charm has inspired some unexpected expressions of fandom.

In July 2018, a 25-foot statue of Goldblum was displayed outdoors in London to commemorate the 25th anniversary of the 1993 hit "Jurassic Park." It was based on Goldblum's bare-chested, reclining pose from the movie — the same image that's also a well-known Internet meme.

Also last year, a Jeff Goldblum event launched in his hometown of Pittsburgh.

Back in 2004, Pittsburgh designated July 13 as Jeff Goldblum Day. But in 2018, a local business, the Artisan Cafe and Tattoo shop, transformed the date into a daylong happening, complete with T-shirts, trivia and Goldblum-themed cosplay.

The real Goldblum made an appearance this year at the Jeff Goldblum Day festivities.

Contact Detroit Free Press pop culture critic Julie Hinds: 313-222-6427 or jhinds@freepress.com.