I am planning my vacations upcoming August, and I hope that someone could give me som hints as to which museums one should visit in Europe, if you are person interested in the Great War. And don't say the Imperial War Museum in London. Because I've been there - but that's pretty much it, I'm afraid.
bovington tank museum is almost like a mecca to a WWI modeler/historian so take a trip there (david Fletcher works there, and he has some of the best books on WWI tanks out on the market)
Musée des blindés in Saumur France has the only surviving St. chamond and Ca1 schneider and they are in working condiion and they host shows when they drive the tanks. I believe they have a Renault there also not sure if its from WWI because there are so many diffrent kinds of renaults
The berlin war musuem?? has a mock replica of a Wotan not real but looks quite good I am not sure if its in Berlin so check that if yo uare palnnign to go there
In my book, the best WW1-museum in Europe, and I guess the world, is the Armed Forces Museum in Brussels. It has one Mk IV, one Whippet and one FT-17 plus some 30-40 WW1 artillery pieces, many in their original camouflage. Not to mention their collections of unforms, equipment and small-arms. It is very, very good. You will be stuck there for hours!
1. Brussels - but off course! Not to be missed. Make it the top of your list.
2. Verdun - not only the small but well-equipped Battlefield museum at Fleury (or the site where Fleury used to be in 1916), but also the Fortresses: both Vaux and Doaumont, open to access, but also the whole horrible Battlefield itself, which is a sort of open-air museum. (You can still find remains of dead humans there, and the debris of war. In ceratin places.) Verdun will keep you busy for DAYS. Reserve at least three.
3. Redipuglia, outside Trieste. A double hill, hotly contested in WW1: one a HUGE cemetary, the other a open-air museum with lots of WW1 guns, several pretty rare. Plus a small but well-stocked indoor museum.
And if you are in Redipuglia, then you might as well make it up north, to Gorizia: they have a small but very nice and modern WW1 museum. Not many big guns there, but more of the human drama. Nice. And if you are in Gorizia, then you might as well make it due north-east, cross the border into Slovenia and go to Kobarid, a.k.a. Caporetto, where they also have a nice, modern WW1 museum. Not many big guns, but again a good over-view of the Isonzo Battles.
There's a pretty cool WW1-museum in the town of Albert, near the famous church in the city center. It is actually underground, in the long tunnels under the city square. Lot's of cool WW1 items, and a shop were you can buy WW1 relics: helmets, bayonets, buttons and all.
The best Great War museum in Germany is in my opinion the WW1-section of the Bayerisches Armeemuseum (Bavarian army museum) at Ingolstadt. To find it, look for the "Reduit Tilly", a part of the old fortifications of Ingolstadt.
Inside you'll find only few heavy equipment (half a dozen artillery guns), but tons of hand weapons, uniforms, mortars, etc. They even have an original 37mm TaK (first real anti-tank gun)!
If you are in the states, you could go to the Liberty Memorial Museum in Kansas City, Missouri. It is currently in a state of flux, due to renovations, but has a nice selection of artillery, as well as other militaria for the Great War. It is also the only official WWI memorial for the US.
They also have a 37mm TAK at the Wehrtechnische Studiensammlung in Koblenz, along with several Granat- and Minenwerfer, the 10cm K17 (and not 04/17 as stated), A 77mm FK96 both a/A and n/A, an FT17, a 10,5cm lFH16 (WW2 version), a 105mm (?) Schneider (?) gun and a 10cm Skoda mountain gun. Also they have a large library, but you have to make an appointment if you want to have information on subjects. Outside the museum (near the bridge) there is a bookshop that is stuffed with interesting books and kits. The Wotan Replica of the A7V is not in Berlin, but in the Panzermuseum Munster. They also have a Stridswagn M21, the Swedish version of the LKII and a Schupo-Sonderwagen 21. The Imperial War Museum at Duxford also has a nice selection of guns and trucks, but you cannot beat Brussels.
I would unhesitatingly recommend the Tank Museum at RAC Bovington as they have probably one of the best collections of WW1 tanks and equipment in the UK, a recent feature is a replicated British and German trench, which brings the exhibits to life.
It takes me several hours to go round as there is so much to see, from the earliest tanks to the most recent and exhibits are updated regularly so there is always something new to see.
In the summer, there are often outdoor exhibitions with tanks running around, re-enactors etc. One year I went (about 10 years ago now) they had the Mk V out and about - I don't know if it is run any more.
In Italy I stronlgy recommend to visit the great war museum in the castle of Rovereto, in Trentino Alto Adige, this is their website with also information to get there: