Cannot add custom drop down menu item to highend theme

I tried to add a custom drop down item to my main menu navigation, but I only get the dark bar. The link does not appear within the dark bar. I want to add each of my galleries shown on the Our Work Page as separate pages. How can I add my galleries as separate pages if I cannot add them to my drop down menu? Here is my site:
http://flyingturtleconcrete.com/

Thanks!