Human: Generate a brief description of a magnificent scene inside of a mansion with a walkway, telescope, and crystal walls. Assistant: 
Curved, transparent sheets of crystal set at an angle into alabaster walls meet high overhead to enclose the top of the tower. At the dome's apex, the crystal panes become a single lofty spire. On one side of the crystalline chamber, a gilded arch opens onto a slender walkway that reaches into the sky without rails or supports. Opposite the arch is a gold-chased telescope near a low table and scattered lounge chairs that invite stargazing.