Srimad-Bhagavatam: Canto 8 - Chapter 1 - Verse 15
Sanskrit:
रुक्मपट्टकपाटैश्च द्वारै: स्फटिकगोपुरै: ।जुष्टां विभक्तप्रपथां विश्वकर्मविनिर्मिताम् ॥ १५ ॥
ITRANS:
rukma-paṭṭa-kapāṭaiś cadvāraiḥ sphaṭika-gopuraiḥjuṣṭāṁ vibhakta-prapathāṁviśvakarma-vinirmitām
Translation:
The doors were made of solid gold plates, and the gates were of excellent marble. These were linked by various public roads. The entire city had been constructed by Viśvakarmā.