I am herewith mentioning all the steps that I have taken while creating this Dome Tower, for your reviews and suggestions.
Step 1 - Object Mode - X Delete The Cube
Step 2 - Object Mode - Shift A - Mesh - UV Sphere
![Step 2 - Object Mode - Shift A - Mesh - UV Sphere|690x382]
(upload://2wAt69s8kCtUvWZnQiAjtpn6qQ2.png)
Step 3 - Object Mode - Segments & Rings Adjustment
Step 4 - Edit Mode - Side View (3)
Step 5 - Edit Mode - Transparent Mode - AA + Shift Drag Left Mouse for bottom selection
Step 6 - Side View - Transparent Mode - Shift + S - Vertices
Step 7 - The Dome
Step 8 - Shift + A - Cylinder - Adjusting Vertices
Step 9 - Cylinder - G + Z -1
Step 10 - Removing Duplicate Vertices - Transparent Mode - Left Mouse Drag select Middle Vertices + M - By Distance
Step 11 - 3 (Side View) G + Z 2
Step 12 - Transparent + Vertex Select Mode - Selecting the Vertices + M - By Distance (Repeat for the remaining three)
Step 13 - The Dome Tower
Eagerly looking forward for suggestions, whether I did get it right.
Best,
Utpal