Wordpress is adding backslash and extra quotes to my classes?

I have some custom classes in various pages across my wordpress site and wordpress is spitting those classes out with extra variables.

For example: <h3 id="amenity-ico"> is changed to THIS: <h3 id="\"amenity-ico\"">

I'm clueless as to what's going on. Any ideas?

Website is http://ift.tt/16gBxxJ