This document discusses three Formula 1 circuits - Yas Marina Circuit in Abu Dhabi, Sochi Autodrom in Russia, and Marina Bay Street Circuit in Singapore. It provides details on the history, design, and notable features of each track. Yas Marina Circuit is noted as the first night race track and most expensive circuit ever built. Sochi Autodrom is a new addition that utilizes the 2014 Winter Olympics infrastructure. Marina Bay Street Circuit is highlighted as the only night-time street circuit that uses floodlights to emulate daytime conditions.