Here's what makes the Biltmore's gardens so vibrant ... Estate's website provides a Fall Color Report, including which flowers, trees and other plants are on display month-by-month.

When it came to North American locations, the Biltmore Estate Garden ranked in the top three. The estate's gardens also made it into the top 50 most vibrant among all of the gardens analyzed.

The Biltmore Estate Gardens ranked second in North America for vibrancy, according to a Premier Inn study. The study used satellite imagery and color theory to analyze over 150 gardens worldwide.