Wonder disappears.

[Perdido39]

One of my cities is building Manhattan Project. When completed, there is no trace of it.

Screenshots and saved files available on request.

 

[Browd]

Manhattan Project is, as the name implies, a project, not a wonder. Like the Apollo Project, there is no building resulting from its completion. You will be able to build atomic bombs when it is completed.

 

[Perdido39]

You're correct in the analogy with Apollo, however 5 turns later I have 10 uranium resources but the atom-bomb is not listed in the units to build.

My bad.. I haven't completed "Nuclear Fission"...