Step 1: Understanding the Concept: 
Fertilization is the fusion of a male gamete (sperm) with a female gamete (egg or ovum) to form a zygote. The question asks for the location of this event in humans. 
Step 2: Detailed Explanation: 
- In human reproduction, sperm is transferred from the man's body to the woman's body during intercourse. 
- The sperm then travels through the female reproductive tract to meet the egg. 
- Fertilization occurs when one sperm successfully penetrates the egg, typically in the fallopian tube, which is part of the woman's reproductive system. 
- Therefore, fertilization takes place inside the woman's body. 
Step 3: Final Answer: 
Human fertilization is an internal process that occurs within the female reproductive tract.