Views > Shared > _CultureSwitcher.cshtml

<ul class="nav navbar-nav navbar-right">
    <li class="dropdown">
        <a
           href="#"
           class="dropdown-toggle"
           data-toggle="dropdown"
           role="button"
           aria-haspopup="true"
           aria-expanded="false"
        >
            @System.Threading.Thread.CurrentThread.CurrentCulture.EnglishName
            <span class="caret"></span>
        </a>
        
        <ul class="dropdown-menu">
            <li><a href="/en">English</a></li>
            <li><a href="/ar">Arabic</a></li>
        </ul>
    </li>
</ul>