Why does cat urine smell so bad and what can be done to reduce or eliminate the odor?

Cat urine smells bad due to the presence of ammonia and other compounds. To reduce or eliminate the odor, it is important to clean the affected area thoroughly with an enzymatic cleaner specifically designed for pet odors. Additionally, ensuring that the litter box is cleaned regularly and providing a well-ventilated space for the cat to urinate can help prevent strong odors.