family of 5 traveling to Frankfurt, Germany in May would welcome some suggestions of sites to see in Poland, Belgium and France. We plan to spend 2-3 days in each country.

Huh? Why are you going to Frankfurt? Is that where you're flying out of?
To be really blunt, it doesn't make a lot of difference what sites you go see since it will probably all be a blur anyway. How are you traveling? Train or car? Fly between some of these places? You have a week total? Did you want to see some of Germany too?

This sounds too strange to be a possibility, but on the odd chance that you are serious and you can't change your flights, I suggest Krakow, Brugges, and Paris. Two to three days in each of those towns will gave you a vague idea of what they are like.

Might as well give us some more specific dates too.

May 1, 5 & 8 are holidays in France this year. Holidays can affect your schedule.

Do you hasve 6 or 7 days total? If so - this plan is madness. You need to choose one country - pick a major city and add a couple of day trips to the countryside. Otherwise your entire trip would be spend in trains or at airports.

Even if you have two full weeks - you could do France/Belgium and see severl athings - or do Poland with something else - a guess Paris if you fly between the two.

You also posted this same question several days ago adding that you are visiting family in Frankfurt. Have you chosen to ignore the comments you received then?

If you can't find your previous post, click on your name at the top of this page where it says "welcome" and that will bring up your other post(s) to the left hand column, so you can click on it and review the responses you already got.

We will be in Europe for 12 days from May 11-May 22. The reason we fly into Frankfurt is because family lives in this area. We would also like to see some of Germany and will be traveling by car and train.