The Illinois
Frank Lloyd Wright's Mile-High Tower
Wright answered urban congestion with a 528-storey tower one mile high—announced in detail and impossible to finance or build.
Quick facts
- Existence state
- Never Born
- Peak stage
- officially announced
- Research confidence
- high
- Last verified
What it was
Frank Lloyd Wright's conceptual mixed-use skyscraper for Chicago, also known as the Mile-High Illinois.
Wright unveiled the tower at a press conference with an eight-foot drawing, a proposed steel tripod structure, atomic-powered elevators, parking for thousands of cars and helicopter facilities. It was a serious public design statement without a client, site commitment or construction budget.
Existence timeline
Wright presents the Mile-High tower in Chicago.
The project appears in Wright's book A Testament.
The proposal remains without a client or construction program.
Foundation-backed imagery makes the unbuilt tower newly explorable.
Wright prepares drawings, structural concepts and presentation material for the proposed mile-high tower.
Why it ended
No developer or authority adopted the project, and contemporary elevator, structural and financial limits kept it conceptual.
Last confirmed trace
The monumental drawing, plans, writings and later digital reconstructions are preserved through the Frank Lloyd Wright Foundation and MoMA.
What it left behind
Its extreme taper and vertical-city ambition anticipated later megatall skyscraper discourse and kept Wright inside debates about the future metropolis.
How we classified it
No generally obtainable public release existed; demonstrations, internal prototypes or archival fragments do not constitute public access to the proposed work.
The strongest verified milestone maps to officially_announced in Arrival Score V1.
Sources & verification
Last reviewed 2026-08-01. Sources are linked so readers can inspect the evidence directly.