What is the biggest circuit?

The biggest circuit in terms of size is the Monaco Grand Prix circuit, known for its challenging street layout in Monte Carlo. However, in terms of length, the Nürburgring Nordschleife, often referred to as "The Green Hell," is one of the longest permanent race tracks, measuring about 20.8 kilometers (12.9 miles). Each circuit has its unique characteristics and challenges that attract motorsport enthusiasts worldwide.