Optical illusions frequently capture the internet's attention. Remember the debate over the dress—was it beige or blue? Or the shoes—were they turquoise or pink? These captivating visual puzzles are often linked to how individuals interpret colors. However, some illusions rely on specific conditions to truly amaze and baffle viewers.
Prepare to be amazed by these 10 optical illusions that will undoubtedly play tricks on your mind (and no, you can’t blame it on alcohol this time!).
10. The Moon’s Apparent Size

Have you ever wondered why the moon appears larger near the horizon? Surprisingly, it doesn’t actually change size. This is a classic optical illusion. The moon remains the same size whether it’s low on the horizon or high in the sky. To test this, you can photograph the moon at both positions and compare the images—it’s a fascinating experiment!
But what about those stunning photos where the moon appears enormous? That’s just the result of zooming in. However, the yellowish or orange tint the moon takes on near the horizon is real. This occurs because moonlight travels a greater distance through the atmosphere, scattering the shorter blue wavelengths and allowing the longer, reddish wavelengths to dominate.
9. Go Home, Carpet. You’re Drunk!

Ege Carpets took their love for *The Big Bang Theory* to new heights by crafting a space-time continuum carpet that would even earn Sheldon Cooper’s approval.
Looking for something unique for your home? Consider the 3D Bottomless Hole Optical Illusion Area Rug. It creates the sensation of stepping into a portal, and it’s guaranteed to be a conversation starter at every gathering.
8. A Hidden Dimension

Nature often surprises us with its peculiar wonders. In 2019, scientists exploring the Pacific Ocean’s depths stumbled upon something extraordinary 2,000 meters (6,561 feet) below the surface.
Using a remotely operated vehicle, lead researcher Mandy Joye and her team investigated a hydrothermal vent in the Guyamas Basin. They discovered a rock overhang with an underside so smooth that it created a flawless reflection of the marine life below. When the ROV shifted its angle, the illusion vanished, revealing a sparkling expanse resembling diamonds.
This mesmerizing effect was caused by hot water from the vent mixing with colder ocean water. As the warm water rose, it became trapped under the rock overhang. The temperature contrast between the hot and cold water slowed light, producing the mirror-like illusion.
The glittering minerals observed by the scientists were likely pyrite, though they couldn’t confirm it with absolute certainty.
7. Look, Mom, the Giraffe’s Eating the Plane!

The 2017 Comedy Wildlife Photos contest showcased numerous laugh-out-loud moments captured on camera.
One standout entry featured a giraffe that seemed to be munching on—or at least peeking into—a small airplane’s window. Taken in Masai Mara, Kenya, the photo’s perfect angle has kept the internet amused ever since.
Another puzzling animal illusion is the famous image of a cat on a staircase, which appears to be ascending or descending depending on who’s looking. Could it be Schrodinger’s Cat, simultaneously moving in both directions?
6. UFO or Fata Morgana?

If given the choice, would you prefer the illusion you’re witnessing to be genuine or simply a fascinating example of the Fata Morgana effect?
In 2021, a mysterious UFO-like shape appeared over Alaska’s Glacier Bay National Park. However, it was quickly identified as a Fata Morgana mirage. This phenomenon occurs when air layers of varying densities interact, causing the atmosphere to act like a refracting lens and produce the illusion.
This same effect is responsible for sightings of “ghost ships” or “floating ships.” Some even speculate that Fata Morgana could explain the numerous historical accounts of the Flying Dutchman.
5. Phantom Ships in the Sky

Floating ships have been reported worldwide, with one of the most striking images captured in the UK in 2021. David Morris, while spending a day at the beach, noticed a massive tanker seemingly suspended in mid-air above the ocean. His photograph showed the ship with blue sky both above and below it, where it eventually met the water.
Morris accepted the Fata Morgana explanation, dismissing any supernatural claims despite the ship’s apparent levitation. Just two weeks later, a similar mirage was observed off the Dorset coast, where the cruise ship *Jewel of the Seas* appeared to float in the grey sky.
4. Is This a Painting or Reality?

Located near the renowned Sossusvlei salt pan, the Deadvlei white clay pan in Namibia’s Namib-Naukluft Park is home to ancient camel thorn trees. These trees, which perished around 700 years ago, have turned black due to relentless sun exposure. From a typical viewpoint, Deadvlei appears as an ordinary desert scene.
However, when photographed from a low angle with sunlight skimming the distant sand dunes, the trees and their surroundings transform into a surrealist painting-like illusion. The stark contrast between angles is so striking that comparing the two images might make you doubt they depict the same landscape.
3. From Negative to Color

The negative lady illusion features a slightly eerie photo negative of a woman that briefly transforms into a color image if you stare at it intently. By focusing on a small dot on her nose for 15 seconds and then shifting your gaze to a blank space, her image momentarily appears in full color.
This illusion occurs due to a negative afterimage, where the colors you perceive are inverted from the original image. A similar effect happens when you stare at a red object and then see a green afterimage.
2. Triple Suns in the Sky
If scorching heat isn’t your thing, the idea of three suns shining down might send you fleeing to colder climates like Antarctica.
Thankfully, spotting three suns in the sky is either a sign of extreme intoxication or the sundog phenomenon. In 2019, truck drivers and early risers in Northern Russia witnessed this breathtaking event. Sundogs are thought to result from ice crystals refracting sunlight, creating the illusion of multiple suns. The spectacle provided stunning photo opportunities, with many sharing the images on social media.
Russia is also known for the light pillars illusion, which can resemble UFO beams. These pillars form when artificial light reflects off countless ice crystals suspended in the air.
1. A Heavenly Staircase

In 2016, South African artist Strijdom Van Der Merwe unveiled a unique statue in the Western Cape province. Crafted from mild steel tubing in the shape of a stairway, it was created for the Hermanus Fine Arts Festival and now resides at Creation Farm in the Hemel and Aarde Valley.
When viewed from the correct angle, the stairway creates a mesmerizing optical illusion, appearing as though it ascends into the heavens. This artwork gained global recognition, with a similar version showcased in Taiwan in 2021.
