The name of the camp is Sachsenhausen, it's to the north of the city. It's spooky and very humbling! An English speaking tour bus wont be to hard to find and it's a 'must' because you would miss so much if you didn't. The city's history is amazing and it's all right there in you face, in the old east of the city you can still see the strike marks on the buildings from the fierce gun battles with the Russians. The same street lights still stand on Unter den Linden (Under The Linden Tree's) that they hung German objectors and Jews alike. A beautiful boulevard with a dark history, like most of the city I guess!
I've been away to long to recommend the night life i'm afraid!

Steve

Didn't do much nightlife, but I can recommend the walking tours and the tv tower. The Gedachtniskirche was covered in scaffolding but is supposed to be spectacular.

For a thoughtful hour or two visit the Topography of Terror museum on the site of the old Gestapo HQ (some of which is still there).

When I flew to Berlin with the wife in 1963 we got a Russia escort . Fighters planes both sides of our plane.At the time there was only 3 ways in to West Berlin Road/Air/Train .most time the Russians close them off .
How thing have changed

I went for three days last year and didn't even scratch the surface. It was for a mates birthday so it was probably more nighlife orientated but we managed a city tour which was fantastic. Best piece of advice I can give is ensure you experience the east side of the city and the west side. Despite the wall coming down over twenty years ago there are still visable differences between both (sound familar?!). Like being in two different cities I found.
If you and your wife are looking to experience the nightlife I would recommend Renate - a five story squat basically. It's not for the faint hearted though. Bit like following FC!! Enjoy mate!

A quick sprinkle and they'll be fine.

Berlin is also home to some insane people - you would fit right in

Spent a week there in 2003 and absolutely loved it. One of my favourite places and keep meaning to make a return visit sometime.

I found the atmosphere to be relaxed and friendly. It was almost as if having spent 60 years being told what to do, where and when (first of all by hitler and his goons and then by the russians post war) Berliners are determined to enjoy themselves and leave their troubled past behind.

As for nightlife, I notice a couple have already mentioned Potsdammer Platz for eats and drinks. We also used to go to an area called Hackersack Market (bit unsure about the spelling) which was quite lively. Reminded me a little of market place in Hull, although that was 9 years ago so don't quite know what it's like today.
The nearest train/tube station to our hotel was Belle Vue so I've always associated Berlin with Wakefield in my rather confused mind .

Also, a really nice place to go is Potsdam itself (location of the post war conference which divided up Europe along the lines which lasted until the fall of the Communist bloc in 1990). It's about 40 minutes by train from Berlin but if you're only going for 3 days you probably won't have the time to take it in.

Hope you enjoy your stay, I know I did.

it's a lot easier to get a Russian escort nowadays.

As usual great advice from from the FC community if anyone wants advice about berlin pm me.
cheers guys for all the advice.

not on my salary mate !

Culture vulture.

I do try.

Having experienced Sydney's history and culture nothing else will ever compare.