Valmiki Ramayana Sundara Kanda Sarga 2 Shloka 19

सः that, कपिश्रेष्ठः foremost of the vanaras, पाण्डुरैः with white , शुभैः with auspicious, भवनैः with mansions, गिरिमूर्ध्नि on the mountain, स्थिताम् stood, आकाशगम् यथा as if touching the sky, पुरं a city, लङ्काम् Lanka, ददर्श saw.

The foremost among the vanaras, perched on top of the mountain saw the city of Lanka on the mountain with auspicious mansions as though touching the sky.