List of visionary tall buildings and structures
This is a list of buildings and other structures that have been envisioned.File:XSeed4000BurjDubaiComparison.jpg|thumb|350px|The X-Seed 4000 is one of the tallest structures ever conceived. Shown in this image is the Burj Khalifa, tallest structure in the world since 2009 to this year, and the X-Seed 4000 project.
The definition of "vision" is that used by the Council on [Tall Buildings and Urban Habitat]. The list does not include under construction buildings; these are listed at.
Envisioned structures
Cancelled and scrapped projects
| Name | Pinnacle height | Year of first proposal | Structure type | Main use | Country | City | Year of projected completion | Description |
| Houston Tower | 1979 | Skyscraper | Residential, commercial, retail, leisure real estate, office |  United Statesconvert|1.3|mi|kmconvert|2,001|m|ft|abbr=on |