Brains Mystery Cache

You must look at the 6 pictures (in a file which you can view at the link below) and find a single word which links them all.

Click here for pictures

In order from the top left the pictures are of:
an Italian building;
a supersonic vertical take-off and landing rescue aircraft;
an Italian scientist;
an insect native to Australia;
an English king;
an England football captain

The link between 4 of the pictures is pretty direct, but for two others the connection is a bit more obscure. You can then convert the linking word into a longer password by preceding it with another word (the word to add will be obvious when you have the word which links the pictures). These two words together (lower case, no spaces) form the password you need. Click on the link below, use the password, and the you will reveal the coordinates of the cache box.

Click here for coords (if you have password)

There are no longer letter values in the cache box as all the caches in this mini-series are now independent of one another.