One-way fares are $2.25 for adults, $1.00 for youths aged 5-12, and $1.00 for reduced rate, including seniors citizens 65 years and older, disabled individuals, persons with Medicare cards, and active-duty U.S. military carrying their identification cards. Roundtrip fares are twice the price of a one-way fare, while children four and under ride free. From: http://en.wikipedia.org/wiki/Seattle_Center_Monorail

The electric current is drawn from a two-tiered electric rail that is aligned with the side of the track. The top rail is ground, with the live rail suspended beneath it. The monorail uses dynamic braking for higher speed braking (over 10 mph), and has drum brakes for lower speeds. From: http://en.wikipedia.org/wiki/Seattle_Center_Monorail