Nepenthes 'Bloody Mary' is definitely one of the most admired carnivorous plants. These are the plants that fit the stereotypical view of what carnivorous plants are.
IMPORTANT: Insectivorous / carnivorous plants do not represent any kind of danger to humans. Their digestive juice is a good hand sanitizer at best! Many come from the misty jungles of Southeast Asia, forming tree-climbing cattle, and their traps really do look like traps.