They're baaaaaaaack. Remember back in 2020 when all of those mysterious monoliths started popping up all over the place? Well, another one has mysteriously just appeared in northern Colorado.

According to a post in the Fort Collins subreddit, a user said they went to the monolith and claimed it was put up to mess with someone in the area, but this hasn't been confirmed.

The user said, "So I went to the alien structure, and asked around. Apparently the story is, one of the homeowners in the area believes in aliens, and conspiracies; so his neighbor decided to build one, and set it up on the hill, to mess with him. Sadly nothing out of this world."

This isn't the first monolith to pop up randomly this month. According to KDVR's Nexstar partner station in Las Vegas, a similar structure was found north of the Las Vegas Valley over the weekend of June 15–16. The Las Vegas Metropolitan Police Department took it down on June 21.

Have you seen any other mysterious monoliths popping up around Colorado? What do you think is the meaning/purpose behind them?

*This is an ongoing story and will be updated as we learn more. Refresh for the latest!