Planning my trip and was looking for good places to take day trips to while i’m in:

London (Stonehenge, Bath, ???)
Brugge (Brussels, ???)
Paris (???)
Nice (Monaco for casino, ???)
Interlaken (???)
Rome (Pompeii, ??)
Not sure here but leaning towards Corfu via Brindisi
Venice (???)
Vienna (Is it possible to make it out to Aushwitz and back for a day trip?, ???)
Germany (Not really sure if i’m goin to stop here but suggestions on where to stay??)
Amsterdam (Harleem, ???)

??? are for suggestions on the day trips from those places. I have plenty of time so don’t worry about taking that into account. Let me know what you think. Thanks a bunch. You people are a great help.

J