<link href="//maxcdn.bootstrapcdn.com/bootstrap/3.3.0/css/bootstrap.min.css" rel="stylesheet" id="bootstrap-css">
<script src="//maxcdn.bootstrapcdn.com/bootstrap/3.3.0/js/bootstrap.min.js"></script>
<script src="//code.jquery.com/jquery-1.11.1.min.js"></script>
<div class="container">
<ul class="nav nav-pills nav-stacked">
<li><a href="#lightbox" data-toggle="modal">Open Lightbox</a></li>
<li><a href="#lightbox" data-toggle="modal" data-slide-to="1">2nd Image</a></li>
<li><a href="#lightbox" data-toggle="modal" data-slide-to="2">3rd Image</a></li>
<li><a href="#lightbox" data-toggle="modal" data-slide-to="15">Open non existing Image</a></li>
</ul>
<div class="modal fade and carousel slide" id="lightbox">
<div class="modal-dialog">
<div class="modal-content">
<div class="modal-body">
<ol class="carousel-indicators">
<li data-target="#lightbox" data-slide-to="0" class="active"></li>
<li data-target="#lightbox" data-slide-to="1"></li>
<li data-target="#lightbox" data-slide-to="2"></li>
</ol>
<div class="carousel-inner">
<div class="item active">
<img src="http://placehold.it/900x500/777/" alt="First slide">
</div>
<div class="item">
<img src="http://placehold.it/900x500/666/" alt="Second slide">
</div>
<div class="item">
<img src="http://placehold.it/900x500/555/" alt="Third slide">
<div class="carousel-caption"><p>even with captions...</p></div>
</div>
</div>
<a class="left carousel-control" href="#lightbox" role="button" data-slide="prev">
<span class="glyphicon glyphicon-chevron-left"></span>