"The Checkpoint Charlie Museum in Berlin is utterly fascinating if you have any interest in Cold War history. It’s huge and covered in information. It’s expensive because it’s a private museum. And it’s full-on information overload. That being said, if you don’t mind reading and really want to learn, it’s quite extraordinary."
There simply are no photos that do it justice. It's equally beautiful and scary.
Ahhh, then you want to visit Southeast Alaska. Small towns trapped on islands with history out the wazoo, totem poles, wild animals, dense forests and amazing trails everywhere. Fishing in spring and cheap cruise tickets in fall. Something for everyone from child to child at heart. I live there and I'm still amazed everyday.
For my Part i can definately recommend going to the Grand Canyon (north or South rim).
Versailles is kind of nice but overcrowded. The Garden of the Chateau is the Highlight.
Don't go on the Eiffeltower. Go to the Montparnasse Tower. there you also have a view over the City together with the Eiffeltower. Or just go to Montmartre, there you'll have good view too. Though it is crowded and you cannot see the Eiffeltower very well