Entry No. 37 — the St. Louis file — filed under: optical illusions
Museum of Illusions St. Louis
Located inside the historic City Foundry STL, this interactive sensory space features mind-bending optical illusions, mirror rooms, holograms, and perspective-shifting installations.
The story
Tucked into the repurposed industrial shell of Midtown's City Foundry STL, this place operates on a simple premise: your brain is remarkably easy to lie to. Before you even set foot inside, you might notice its bizarrely unfortunate local web domain—*moistlouis.com*—an unintended phonetic mashup of "Museum of Illusions St. Louis" that made local internet sleuths double-take.
Inside, the gallery trades historical artifacts for tactical sensory glitches. You'll encounter mirror-lined infinity rooms that stretch space into endless grids, forced-perspective setups, and intricate holograms. The main draw is physical disorientation: in the Reversed Room, gravity gets flipped on camera so you look like you're dangling off the ceiling, while the Vortex Tunnel spins a cylinder of light around a completely static walkway, instantly convincing your inner ear that the bridge is violently tilting.
What it's like
Expect a lighthearted, camera-first environment where nearly every installation requires a second person—or a precisely placed tripod—to complete the visual trick. You will walk in, hit the floor spots marked for optimal photo angles, and definitely end up clinging to the handrails in the Vortex Tunnel to keep from falling over flat ground. Check current hours ahead of time, as timing within the Foundry complex can shift.
The move: Hold onto the rails as you brave the dizzying Vortex Tunnel, then snap a gravity-defying photo of yourselves on the ceiling in the Reversed Room.
- 📍 Midtown
- 💸 $$
- ⚡ Up for anything
- 🌗 Indoors
Where: 3730 Foundry Way, Suite 168, St. Louis, MO 63110
Hours: Added 2026-07-21 — confirm current hours before you go.
Pair it with
- None of the Above — Stay right inside City Foundry STL and slip through an unmarked gray steel door for a dark, upscale speakeasy drink after throwing off your visual equilibrium.
- Origin Wellness STL — Located just two-tenths of a mile away, this tech-focused wellness hub offers a chill, touch-free reset if the Vortex Tunnel gave you minor vertigo.
- The MOTO Museum — Head less than a mile down the road in Midtown to trade interactive optical tricks for an industrial gallery packed with century-old vintage motorcycles.
Good to know
Where is the museum located?
You'll find it at 3730 Foundry Way, Suite 168, right inside the City Foundry STL complex in Midtown St. Louis.
What is the best way to get tickets?
You can reserve timed-entry tickets directly through their official website before you head out.
Why is the URL named moistlouis.com?
It stands for Museum Of Illusions St. Louis (MOI St. Louis), an unfortunate abbreviation that locals quickly picked up on online.
Plan a visit & invite your people →
Further reading: Official site · cityfoundrystl.com · Reddit
last checked: 2026-07-21