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• In Denver, it is unlawful to lend your vacuum cleaner to your next door neighbor.
• It is illegal for a woman wearing a red dress to be out on the streets after 7 PM.
• You may not drive a black car on Sundays.
• It’s illegal to crash into a lift tower or a sign when skiing.

http://www.traveldestinationinfo.com/what-makes-colorado-such-a-beautiful-state/