.Level works, something like this:

@{
    var rootNode = Model.AncestorOrSelf(1);
    foreach (var node in rootNode.Descendants())
    {
        if(node.Level == 2)
        {
            <p>@node.Name</p>
        }
        else {
            <p>@node.CreateDate</p>
        }
    }
}

Oh just noticed that you wanted the current node, that's just:

Model.Level

Good...works..

  <umbraco:Macro  runat="server" language="cshtml">
@inherits umbraco.MacroEngines.DynamicNodeContext


                @if (Model.Level>1) {
                
<ul>
  @foreach(var level in @Model.Ancestors().Where("Visible"))
  {
    <li><a href="@level.Url">@level.Name</a> > </li>
  }
  <li><b>@Model.Name</b></li>
</ul>
                }           
                
</umbraco:Macro>

Other question: Which is the declaration of vars in upper macro? I try with var livello = @Model.Level but I've error that "livello is out of scope".

I don't know what you want to do, but if you create the livello variable inside the foreach then you can't access it outside of the foreach.. 

I declare var before @if. Then I wish to use it into if condition.

This does not work?

var livello = 1;

@if (Model.Level > livello) {               
    <ul>
      @foreach(var level in @Model.Ancestors().Where("Visible"))
      {
        <li><a href="@level.Url">@level.Name</a> > </li>
      }
      <li><b>@Model.Name</b></li>
    </ul>
}

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