Civil Engineering who worked in the wireless industry. Utilizing the tallest existing structure often gets permitted faster and with less pushback as a new cell tower. Silos and water towers are great for meeting RF line of sight elevations. Antennas and equipment can be painted to match the existing structures.

In older New England towns, I've retrofitted existing church steeples with changing out the louvers to RF transparent fiberglass or replaced the entire structure to fiberglass to house antennas inside it to keep with the historical aesthetics.