The Tupolev Tu-144 was the only other commercial airliner to feature it.
There are no vertical stabilizers attached to the tail. This means that the only horizontal surfaces are the main wings themselves. It looked like a fighter jet (which no 10 year old boy can resist), and I’ve never lost that initial fascination. It was the very first aircraft I ever drew a picture of way back in elementary school, and it’s unique design elements had everything to do with it. The Concorde is one of the only aircraft in existence that I’ve had a lifelong fascination with (the 747 is the other airplane that always made me weak in the knees).
It’s longer than many people think it is. A visual size comparison of the Concorde vs the 747-200 and 737-200.