Illinois Avenue
The names of the 3 Monopoly red properties are Indiana Avenue, Kentucky Avenue and Illinois Avenue.
The three red squares are Illinois Avenue, Kentucky Avenue and Indiana Avenue.
B&O Railroad
Illinois Avenue is a valuable property on the Monopoly board game card because it is one of the most landed-on spaces in the game. Acquiring and developing Illinois Avenue can generate a significant amount of income for players, making it a strategic location to own.
To advance to Illinois Avenue in Monopoly, you need to roll the dice and move your game piece the number of spaces indicated by the dice roll. Illinois Avenue is located 24 spaces from the Go space in a clockwise direction on the game board. You can also use Chance or Community Chest cards that may allow you to move directly to Illinois Avenue.
It was originally Purple, but it was changed to brown.
Kentucky Avenue, Indiana Avenue, and Illinois Avenue. If you want names in some localized/themed version, I refer you to the related links section.
New York, Tennessee, and Kentucky (Part of the trio) are the closest with state names.
This answer only applies to the original monopoly. The three red properties are Kentucky Avenue, Indina Avenue, and Illinois Avenue. They cost $220, $220, and $240, respectively.
In Monopoly, the best properties to own for a competitive advantage and to potentially establish a monopoly over the board are the orange properties (St. James Place, Tennessee Avenue, and New York Avenue) and the red properties (Kentucky Avenue, Indiana Avenue, and Illinois Avenue). These properties have a high probability of being landed on and can generate a good return on investment. Additionally, owning a complete color set can increase your bargaining power with other players and help you build houses and hotels faster, giving you a stronger position in the game.
In the original US version : Kentucky Avenue, Indiana Avenue, and Illinois Avenue.In the UK version : Strand, Fleet Street, and Trafalgar Square.