How are the Louvre, Champs Elysé es, Eiffel Tower, Arc de Triomphe, Place de la Concorde, Palace of Versailles and Notre Dame connected with each other?

You can take the subway 1 line, start from the Arc de Triomphe, stop at De Gaulle etoile, and the exit is the Arc de Triomphe. Get on the subway, take the 1 line to Concorde Square, the fifth stop, and get out to Concorde Square. Take the subway 1 line from Place de la Concorde to the Royal Museum of Louvre. The Louvre is the exit. Take the subway from Louvre to les halles, Chatelet, then take Line 4 to cite Station or RER B Line to Notre Dame de Saint Michel, and you can get to Notre Dame. Then take the RER C line from Notre Dame de Saint Michel to champ de mars tour-eiffel and get off at the Eiffel Tower. It is suggested that your tour route is the same. To Versailles, take the RER C line from the Eiffel Tower, and get off at the War God Tour-Eiffel to Versailles -Rivergauche Station, and you can get to Versailles. Therefore, it is very convenient to use the vicinity of the Eiffel Tower as a starting point or a transit point.

As for Fort Xiang Bo, you need to take the train to Tours and then take the local bus to get there, but there are no buses in some months, only in the peak season. You can also take a one-day tour or a two-day tour of the Loire Castle in Paris. This is more convenient.