get_terms

<?php

        $terms = get_terms("tribe_events_cat");
        $count = count($terms);
        if ( $count > 0 ){
            echo "<ul>";
            foreach ( $terms as $term ) {
              echo "<li><a href='/category/" . $term->slug . "'>" . $term->name . "</a></li>";

            }
            echo "</ul>";
        }

    ?>