The rare McDonald's Monopoly pieces, which are the key to winning big prizes, vary slightly by country and year but generally include the most valuable properties on the Monopoly board. In the US and Canada, rare pieces include locations like Vermont Avenue, Virginia Avenue, Tennessee Avenue, Kentucky Avenue, Ventnor Avenue, Pennsylvania Avenue, Boardwalk, and railroad pieces like Short Line and Reading Railroad. Boardwalk is often the most prized piece with top prizes reaching up to $1 million or more.
In the UK, 2024 rare pieces include Mayfair (dark blue), Bond Street (green), Coventry Street (yellow), Strand (red), Marlborough Street (orange), Northumberland Avenue (pink), Euston Road (light blue), Old Kent Road (brown), and Liverpool Street Station (one of the stations).
In Australia, rare pieces named in 2025 are Whitehall for the purple set, Fenchurch St Station for the stations set, and Old Kent Road for the brown set, with other common pieces surrounding these rare ones.
So, rare McDonald's Monopoly pieces are generally the highest-value properties on the Monopoly board specific to each country’s version, often corresponding to the dark blue, green, yellow color groups and some key stations or utilities. These are the pieces players most want to find to win the bigger prizes.