Another excellent day trip from London by train takes you to Cliveden House, a National Trust estate just on the border between Berkshire and Buckinghamshire. A gorgeous mansion surrounded by the inimitable beauty of the Chiltern Hills and right by the charming village of Taplow, Cliveden House is only around 45 minutes away from Central London.
To get there, you'll need to take a Great Western Railways train from Paddington Station to Taplow and then either take a taxi or make the walk around to the house. Cliveden House is a stunning location with a lot of history and heritage behind it, but it doesn't attract the same kinds of crowds as other historic sites like Windsor Castle, so it's a nice option for people looking for something quieter and calmer.