For the simple curved dome use the revolve and axis line tools.
How to make a dome roof in revit.
New conceptual mass draw the section open and draw a line for the axis.
Please like this video.
First bring in a mass family from the library.
For glazed domes based on curtain walls only the second does.
2 for glazed domes.
This video shows how to create two types of domes as in place roofs in revit.
For the onion shaped dome start by using the model line tool to trace the shape from a photograph.
For both domes create an in place family by choosing component model in place and then choosing roofs in the family category dialog box.
Get this revit file here.
Autodesk revit out of the box has an array of different primitive shapes including dome.