Get all starry-eyed with your sweetheart at the Museum of Science's rooftop Gilliland Observatory, where you can view stars, planets, the moon, and other astronomical phenomena on weather-cooperative Fridays from March to November. It's also one of the best views of the city skyline -- you know, all that light pollution that make it impossible to see most of these stars without the help of a high-powered telescope. Just try not to ruin the mood by making a Uranus joke, OK?

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