Throughout the past couple of weeks, mystery monoliths have been well and truly dominating the internet after 3 were discovered in Utah, Romania, and then California - and now, one has been found in the Isle of Wight, UK.

Though this time, the circumstances surrounding it are even more mysterious...

The mystery of the flagship monolith in Utah started on November 24th during a routine wildlife check that took an extraterrestrial turn...

And it really got the internet talking.

Officers spotted the mysterious monolith right in the middle of rural Utah.

The Utah Department of Public Safety took a helicopter over the desert when the strange sighting took place earlier this week.

They were helping the Division of Wildlife Resources do a routine count bighorn sheep...

When they suddenly noticed a strange-looking object on the ground.

The object appeared to come straight out of 2001: A Space Odyssey.

"One of the biologists spotted it, and we just happened to fly directly over the top of it," pilot Bret Hutchings said.

"He was like, 'Whoa, whoa, whoa, turn around, turn around!' And I was like, 'What.' And he's like, 'There's this thing back there, we've got to go look at it!'"

And there it was.

Right in the middle of a clearing in the rock stood the strange object.

Hutchings said it was easily "between ten and twelve feet high." Although he admitted it didn't look like it had fallen to the ground but instead, placed there on purpose.

"I'm assuming it's some new wave artist or something or, you know, somebody that was a big 2001: A Space Odyssey fan," he said...

In reference to the 1968 film where a large black monolith appears to study early civilization.

Although it was all pretty exciting, the DPS quickly confirmed that it is illegal for any forms of artwork to be placed without permission...

"No matter what planet you're from," they said in a statement released last week.

Well, this didn't stop people from visiting the eerie monument.

Tourists were quick to track down the monolith to investigate themselves and, of course, some wild theories were born as a result.

Speculation was rife as to what the monolith could be...

Or where it even came from in the first place. Let's take a look at some of the best theories born on the internet...

Firstly, it could have been an art structure.

One of the more popular theories - and one supported by officials themselves - is that the monolith could have been made and placed by an artist.

A second theory was that it could have been an alien evolutionary device.

Thanks to its resemblance to the famous object from Stanley Kubrick's 2001: A Space Odyssey, many couldn't help but jump to a science-fiction conclusion.

Thirdly, it could have potentially been an alien probe.

Besides having some specific impact on the inhabitants of planet Earth, the monolith could have "just" been an extraterrestrial probe, sent here to learn about our ways.

And, lastly, some believed that it could have been a government "control device."

Because of course, they did. The American Southwest is rife with government military installations and mysterious bases like Area 51. Having the monolith be a part of some government experiment is a connection that's easy to make for any conspiracy-minded Internet dweller.

Of course, the actual government didn't confirm any of this.

But the DPS did warn people against trying to find it: "It is in a very remote area and if individuals were to attempt to visit the area, there is a significant possibility they may become stranded and require rescue."

But last weekend, things became even more mysterious...

Because the monolith suddenly vanished!

According to the New York Times, the monolith disappeared into thin air.

The Times reported over the weekend that the monolith had been removed - and Utah authorities said they had no idea who removed it.

Utah's Bureau of Land Management confirmed the news.

In a statement, they revealed that the structure was removed last Friday evening by "an unknown party."

"IT'S GONE!"

Posting to Facebook, the Bureau of Land Management wrote: "We have received credible reports that the illegally installed structure, referred to as the “monolith" has been removed from Bureau of Land Management (BLM) public lands by an unknown party. The BLM did not remove the structure which is considered private property. We do not investigate crimes involving private property which are handled by the local sheriff’s office."

And then, to make things even more strange...

A monolith suddenly showed up at the Petrodava Dacian Fortress in Romania. "We have started looking into the strange appearance of the monolith," said Neamt Culture and Heritage official Rocsana Josanu.

"It is on private property, but we still don't know who the monolith's owner is yet. It is in a protected area on an archaeological site."

What does it all mean?

And then, just when you thought there couldn't be more twists in the tale, a couple came forward claiming that they witnessed the monolith being escorted away.

In a lengthy Instagram post, monolith-hunter, Riccardo Marino, wrote: "All that was left in its place was a message written in the dirt that said 'bye b***h' with a fresh pee stain right next to it."

"Someone had just stolen the statue, and we were the first to arrive at the scene."

"We arrived at the location to see nothing but the foul markings left and we realized we must have been the first people to see it removed."

And even weirder?

"At about 10:45pm roughly 4 miles into Lockhart Basin we passed a truck that was hauling a large object strapped down In the bed with the hatch open. I thought for a second that it was the monolith but after driving 8 hours to get here we ignored it and convinced ourselves they were hauling off-road vehicles. We continued 30 minutes down the bumpy dirt road and arrived at 11:11 pm to the pinpoint I selected for us to start hiking from."

"We made the best of the situation and created a more fitting exit for this otherworldly piece of artwork. Our rendition of the monolith returning back to space. Sadly some rando’s now posses it instead of our alien friends."

"On our way out we discovered fresh tire tracks that were made by a dolly, clearly left by someone not too long before us. When we got back to the car we drove back the way we came from and noticed the trucks where the noise was coming from were all gone. We figured it was the rest of the posse of monolith thieves exiting later than the first truck. Transporting the monolith without a posse in the dark had to have been a group effort. We wanted to be the first to report this so we drove 2 hours back to service to get a post out. I’ll be posting more so be sure to follow and check back in."

And if you thought you'd seen the last of the mystery monoliths...

Think again.

A third monolith was soon discovered...

But in California.

The strange silver column was found last week on Pine Mountain by a group of hikers...

And since the discovery, many quickly made the trip to see for themselves.

According to local newspaper Atascadero News, this monolith wasn’t cemented in the ground as firmly as the one Utah was.

"The 3-sided obelisk appeared to be made of stainless steel, 10-feet tall and 18 inches wide. The object was welded together at each corner, with rivets attaching the side panels to a likely steel frame inside."

But, before the monolith had the chance to mysteriously disappear, it was destroyed.

Video footage shared on DLive by the user CultureWarCriminal shows a group of men making their way to the monolith and tearing it down, all while chanting "Christ is king."

One man then addressed the camera directly:

"Christ is king in this country. We don't want illegal aliens from Mexico or outer space, so let's tear this b**ch down."

The group streamed their efforts for a whopping 5 hours...

And, after finally managing to topple the structure, they replace it with a wooden cross near the site.

And now, yet another monoloith has been discovered.

But this one has been spotted on a beach all the way over in the Isle of Wight, United Kingdom.

"We found a shiny thing on our beach walk!"

"This mysterious monolith has appeared at Compton Bay. Looked pretty cool against the Sunday sunset." Officials are yet to address the latest monolith installment. Where on earth will the next one be?