The tram to the top was broken when we arrived so we waited about an hour while they fixed it. During that time we just walked through the Westward Expansion Museum. It was slightly overcast at the top but no less exciting. Avoid the tram if you have any inclination of claustrophobia whatsoever. There is even a sample tram for you to try out before hand.
Make reservations for the tram ride before your visit. When something unexpected happens, like a break down, the schedule backs up fast so walk-in visitors were out of luck.
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