Complex sentence: Around the entire city, is a great glowing wall of fluorescent green marble that is very high, polished smooth and studded with translucent green stones and glittering emeralds that glisten in the sunlight so brightly, they could easy blind one if not careful.
Split into simpler sentences: Around the entire city, is a great glowing wall of fluorescent green marble. It is very high and studded with glittering emeralds that glisten in the sunlight so brightly, it could easy blind one if not careful.