If you love to travel and make photographs while traveling you will probably want to travel lightly, that is with a minimum of equipment.
The plug adaptor will be important for charging equipment but is small. Otherwise you can pare down your equipment to the bare minimum needed to make photos that you can sell or share with others by acquiring a few other compact devices: notebook computer, power cords with multiple recepticles, remote hard drive, and camera.
That equipment will fit in a backpack with room to spare. Within that pack you have all the equipment necessary to create photos, write captions, and upload the images and text to a photo editor, magazine editor, or photo agency.
Equipment such as remote hard drives, adaptor plugs and outlet cords can be found online.
Europe will offer unlimited photo opportunities in the old villages and churches, museum, and hilltowns. You will need some way to store your image files.
Remote hard drives are a good way to store and backup important images. The drives are many and varied, some offer a slim profile with an iincredible 500 gig or more storage capacity.
An active photographer can easily make 4-8 gig worth of photos and more each day so the storage needs will be important.
IIt is best to have several storage cards rather than one large capacity card in case of damage or loss. Two, 8-gig cards for example, instead of one 16-gig card for the camera.
A 12 megapixel camera could easily fill two 8-gig cards in a day of steady shooting in raw mode. Storage space will go quickly, especially if you occasionally create a video. Heavy video use will require plenty of storage.
Important images can go into the computer for storage and onto the poratble hard drive for a backup archive.