Lighthouse
View > Image Plane > Import images
Relocate the pivot poiunt
Duplicate Special
Separate
Extract
View > Image Plane > Import images
Create > Measure Tools
Check Interactive Creation checkbox
Cylinder
Create a coin shape
Subdivisions Axis: 12
Subdivisions Cap: 3
Extrude
Taper with vertices
Select the faces from top
Extrude
Select the faces of side of the pole
Select > Grow = Shift + > or press 'g' key to repeat
Sphere
Cut away the bottom faces
Bridge
Merge to center
Connect
Extrude
Edit Mesh > Detach
Combine
Hypershade
Edit Mesh > Duplicate
Bevel
Soften Edge
Harden Edge
Ctrl + Backspace or Delete = Delete Edge + Vertices
Fill Hole
Scale Tool
To hide and show objects, Show > Isolate Select > View Selected