How to draw corn buildings?

Draw the base of the corn building first, then draw a cuboid building in front, draw the base of the corn building first, then draw a cuboid building in front, and draw the lowest floor of the corn building on the base of the corn building.

Draw the outline of the whole corn building based on the lowest floor. Draw the horizontal line of the floor above the corn building, then draw the vertical line above the corn building, and then draw the vertical line above the corn building.

Millennial Square of Corn House, also known as "Thousand Seals Square", is a new landmark building located in the CBD of Zhengdong New District, Zhengzhou City, the capital of Henan Province.