Each of our senses takes its own path up to the brain. But every so often, the paths criss-cross and blur—and that’s when we wind up with an individual who can hear a taste or see a smell. Check out these cool ways in which synesthesia can manifest, including when it comes to perfume. 
For those who study the brain, our sense of smell has always been a bit of a wild child. While other senses are rule-abiding and organized, smell’s mysterious route through the brain has resisted full scientific comprehension. Here's some of what we know about the magical way a smell makes its way to your brain and the delightful ruckus it stirs up along the way.