The entrance ramp from 405 N to 520 E. For those of you not familiar with it, I will do my best to describe. When you exit 405, you enter a 30mph curve that takes you in almost a full circle. The curve ends basically right beside 520, forcing you to merge with oncoming traffic. This entrance is awesome. If you can’t already visualize it, you’re going 30mph and then all of a sudden you really need to be going 70mph to not get run over. That brief 5 second interval of merging onto the highway hearing the engine roar just makes driving to work a few degrees better.