Made By Humans: Shop & Support Original Art
Sell your art
Login
Signup
Mugs
Retro mountain with trees
Redbubble logo
Explore
For You
Retro Gaming
Horror
Sci-Fi
80s Fandoms
Pop-Culture
Fresh Finds
Fan Art
Blockbuster Movies
Clothing
New
All Clothing
T-Shirts
New
Hoodies & Sweatshirts
Hats
Socks
Dresses
Tank Tops
Stickers
All Stickers
Holographic Stickers
Funny Stickers
Car Stickers
Bumper Stickers
Water Bottle Stickers
Cool Stickers
Anime Stickers
Laptop Stickers
Magnets
Custom Stickers
Phone Cases
All Phone Cases
iPhone Cases
Samsung Galaxy
New
Wall Art
All Wall Art
Posters
Photographic Prints
Art Prints
Tapestries
Canvas Prints
Framed Prints
Art Board Prints
Home & Living
All Home & Living
Mugs
Throw Pillows
Throw Blankets
Tapestries
Magnets
Aprons
Coasters
Jigsaw Puzzles
Duvet Covers
Acrylic Blocks
Clocks
Shower Curtains
Bath Mats
Kids & Babies
All Kids Clothes
Kids T-Shirts
Baby One-Pieces
Kids Pullover Hoodies
Accessories
All Accessories
Hats
Socks
Pins
Backpacks
Tech Accessories
Tote Bags
Makeup Bags
Toiletry Bags
Zipper Pouches
Duffle Bags
Scarves
Stationery & Office
All Stationery & Office
Greeting Cards
Spiral Notebooks
Mouse Pads & Desk Mats
Postcards
Hardcover Journals
Gifts
All Gifts
Gifts for Book Lovers
Gifts for Gamers
Gifts for Her
Gifts for Him
Gifts for Animal Lovers
Gifts Under $50
Gifts for Outdoorsy Types
Gifts for Kids
Stocking Stuffers
Gift Cards
Knowledge Portal Mugs
94 items
Mugs
Filters (2)
94 items
Most Relevant
Buy any 2 and get 15% off.
Buy any 4 and get 20% off.
Knowledge Classic Mug
bobblehead1337
From $15.99
Portal Knowledge Heart Classic Mug
DonAscaneo
From $15.11
Portal Knowledge Star Classic Mug
DonAscaneo
From $15.11
Portal Knowledge Music Classic Mug
DonAscaneo
From $15.11
Portal Knowledge Enigma Tall Mug
DonAscaneo
From $15.11
Portal Knowledge King Tall Mug
DonAscaneo
From $15.11
Heaven Portal Classic Mug
elinkacreations
From $16.37
Inner portal Tall Mug
ARTGENERATESART
From $15.11
Wizards study Classic Mug
Golden Morning
From $14.98
The new portal Tall Mug
kushu
From $15.11
Window to the World Classic Mug
Ryan Laing
From $15.11
Prism vision Classic Mug
AIMARADREAM
From $13.85
Aether Classic Mug
Idrojibz
From $13.85
Window to the Universe Classic Mug
RGiadaArtShop
From $15.11
Silver Stag in the Forest at Dusk Tall Mug
SilverStag111
From $15.74
The Enchanted Library Portal Tall Mug
oanaunciuleanu
From $15.11
The Endless Library Classic Mug
cryolith7454
From $15.11
Surreal Infinite Library of Books Illustration T-shirt Tall Mug
PEAROVA
From $15.11
Venus Wicca illustration. Classic Mug
emphatic
From $17.25
BRAINS ARE AWESOME. I WISH EVERYBODY HAD ONE Classic Mug
kailukask
From $18.89
Sacred blood wolf moon portal Tall Mug
Lenmiscate
From $15.11
BRAINS ARE AWESOME. I WISH EVERYBODY HAD ONE Classic Mug
kailukask
From $18.89
Art Nouveau witch. Classic Mug
emphatic
From $17.25
Venus Wicca illustration. Tall Mug
emphatic
From $17.25
Universe goddess. Classic Mug
emphatic
From $17.25
Forbidden Access Secret Door – Gothic Victorian Mystery Fantasy Escape Room Gift Design Classic Mug
Luminari Creations
From $15.11
Interdimensional Cloud Collective Classic Mug
4Four4Creations
From $15.11
Sleep to wake up the self-look Classic Mug
amarazaia1
From $15.11
LinaXandria - Logo, plain, Lime background Classic Mug
LinaXandria
From $14.48
Infinite Library Cosmic Portal Classic Mug
Idrojibz
From $13.85
LinaXandria - Logo, plain, Orange background Classic Mug
LinaXandria
From $14.48
LinaXandria - Logo, w. name, horizontal, Blue background Classic Mug
LinaXandria
From $14.48
LinaXandria - Logo, w. name, horizontal, White background Tall Mug
LinaXandria
From $14.48
LinaXandria - Logo, plain, Blue background Classic Mug
LinaXandria
From $14.48
LinaXandria - Logo, w. name, horizontal, Lime background Classic Mug
LinaXandria
From $14.48
LinaXandria - Logo, w. name, horizontal, Orange background Classic Mug
LinaXandria
From $14.48
LinaXandria - Logo, plain, White background Classic Mug
LinaXandria
From $14.48
LinaXandria - Logo, plain, Light blue background Classic Mug
LinaXandria
From $14.48
LinaXandria - Logo, w. name, Blue background Classic Mug
LinaXandria
From $14.48
LinaXandria - Logo, w. name, Orange background Tall Mug
LinaXandria
From $14.48
LinaXandria - Logo, w. name, White background Classic Mug
LinaXandria
From $14.48
LinaXandria - Logo, w. name, Lime background Classic Mug
LinaXandria
From $14.48
LinaXandria - Logo, w. name, horizontal, Light Blue background Classic Mug
LinaXandria
From $14.48
Magic Book Portal – Knowledge Universe Design Tall Mug
RØNI AI
From $13.85
The Gatekeeper - Velorum Book Portal & Hidden Knowledge Tall Mug
InnerwayStudio
From $15.62
LinaXandria - Logo, w. name, Light Blue background Classic Mug
LinaXandria
From $14.48
Keeper of the Ancient Portal Tall Mug
Wild light
From $15.11
vintage. flower plant growth life love nice learn knowledge music plantsflowers for fantacy, To flourish Classic Mug
DGFerredon
From $15.11
Cyberpunk Library of the Infinite Cosmos Tall Mug
bbbpetr100
From $13.85
The Celestial Library: A Realm of Eternal Learning | Akashic Records | Fantasy Digital Art Classic Mug
Dedisun
From $18.89
The Divine Library: A Gateway to Higher Understanding | Akashic Records | Fantasy Digital Art Tall Mug
Dedisun
From $18.89
Library Classic Mug
Designfs
From $16.37
Gate of Yog-Sothoth | Lovecraftian Cosmic Portal Art Classic Mug
Stoneflower-Art
From $15.11
"Portal of Infinite Realms – The Cosmic Swan's Journey" Classic Mug
Meta2Physical
From $25.18
Education Portal Illustration The Future Belongs To Those Who Study Student Silhouette Tall Mug
SplashTastic
From $12.84
Gateway to the Galactic Library Classic Mug
AlexSuiArt
From $15.11
Gateway to the Galactic Library Classic Mug
AlexSuiArt
From $15.11
Gateway to the Galactic Library Classic Mug
AlexSuiArt
From $15.11
Gateway to the Galactic Library Classic Mug
AlexSuiArt
From $15.11
Gateway to the Galactic Library Classic Mug
AlexSuiArt
From $15.11
Gateway to the Galactic Library Classic Mug
AlexSuiArt
From $15.11
Gateway to the Galactic Library Tall Mug
AlexSuiArt
From $15.11
Gateway to the Galactic Library Classic Mug
AlexSuiArt
From $15.11
Gateway to the Galactic Library Classic Mug
AlexSuiArt
From $15.11
Gateway to the Galactic Library Classic Mug
AlexSuiArt
From $15.11
Gateway to the Galactic Library Classic Mug
AlexSuiArt
From $15.11
Gateway to the Galactic Library Classic Mug
AlexSuiArt
From $15.11
Gateway to the Galactic Library Classic Mug
AlexSuiArt
From $15.11
Cosmic Pages, Earthly Reach Classic Mug
zzz888
From $20.14
Gateway to the Galactic Library Classic Mug
AlexSuiArt
From $15.11
Gateway to the Galactic Library Classic Mug
AlexSuiArt
From $15.11
Gateway to the Galactic Library Tall Mug
AlexSuiArt
From $15.11
Gateway to the Galactic Library Classic Mug
AlexSuiArt
From $15.11
Gateway to the Galactic Library Classic Mug
AlexSuiArt
From $15.11
The Shadowed Path to the Luminous Unknown Tall Mug
Astraliscape
From $15.11
"Portal to the Stars – A Journey Beyond Sacred Geometry" Classic Mug
Meta2Physical
From $25.18
Rescue Through the Portal – A Siren's Call Across the Cosmos Classic Mug
Meta2Physical
From $25.18
"Celestial Swan Dive – The Cosmic Journey Across the Stars" Tall Mug
Meta2Physical
From $25.18
The Universal Key Classic Mug
Wesira
From $16.37
"Skies of Ancient Mars Emblem" Tall Mug
Dogandesighn
From $15.11
Lost in the Pages Galaxy Bookworm Fantasy Tall Mug
Taans-Creation
From $14.48
How To Use Raw Knowledge The Right Way v31. Tall Mug
DIVINE BODY LIFE
From $17.63
Become a member.
Get 25% off your first order.
Plus other neat perks and exclusive savings to help you find the very thing.
Sign up
Previous
1
2
Next
Home & Living
Mug
Knowledge Portal
Knowledge Portal mugs featuring incredible independent designs from the Redbubble artist community. Available in travel, tall and standard options.
Knowledge
Portal
Wisdom
Celestial Design
Cosmic Structure
Digital Fantasy
Dreamlike Setting
Floating Book
Futuristic Temple
Galactic Library
Glowing Chamber
Mystical Light
Interstellar Archive
Worldwide Shipping
Available as standard or express delivery
Learn more
- opens in new window or tab
Secure Payments
100% Secure Payment with 256-bit SSL encryption
Learn more
- opens in new window or tab
Free Return
Exchange or money back guarantee for all orders
Learn more
- opens in new window or tab
Local Support
24/7 Dedicated support
Learn more
- opens in new window or tab
