White Marble Corridor
=====================

+-- Level +1 ---------------------------------------------------------------+
|                                                                           |
|                                                         %?@C              |
|                                                         v  |              |
|                                                            |              |
|                                                            C>             |
|                                                                           |
+---------------------------------------------------------------------------+

+-- Ground level -----------------------------------------------------------+
|                                                                           |
|                                                      *  *#-*              |
|                                                      |  |  |              |
|                                                      |  |  |              |
|                                                      *--*  *              |
|                                                            |              |
|                                                            |              |
|                                                      *  *--*              |
|                                                      ?  |                 |
|                                                      @  |                 |
|                                                   *--*  *--*--*           |
|                                                   |  |        |           |
|                                                   |  |        |           |
|                                          *--*--*  *  *--*  *--*@?*  *--*  |
|                                          #     |  |     |  |        |     |
|                                          |     |  |     |^ |        |     |
|                                          *--*  *--*  *--%--*  *--*  *--*  |
|                                             |        |  |v    |  |     #  |
|                                             |        |  |     |  |     |  |
|                                          *--*  *?@*--*  *--*  *  *--*--*  |
|                                                   |        |  |           |
|                                                   |        |  |           |
|                                                   *--*--*  *--*           |
|                                                         |  @              |
|                                                         |  ?              |
|                                                      *--*  *              |
|                                                      |                    |
|                                                      |                    |
|                                                      *  *--*              |
|                                                      |  |  |              |
|                                                      |  |  |              |
|                                                      *#-*  *              |
|                                                                           |
+---------------------------------------------------------------------------+

+-- Level -1 ---------------------------------------------------------------+
|                                                         ^                 |
|                                                         %                 |
|                                                         v                 |
|                                                                           |
+---------------------------------------------------------------------------+

+-- Level -2 ---------------------------------------------------------------+
|                                                         ^                 |
|                                                         %                 |
|                                                         v                 |
|                                                                           |
+---------------------------------------------------------------------------+

+-- Level -3 ---------------------------------------------------------------+
|                                                                           |
|   *--*--*                                                                 |
|      |                                                                    |
|      |                                                                    |
|   *--*--*                                                                 |
|      |                                                                    |
|      |                                                                    |
|   *--*--*                                                                 |
|      |                                                                    |
|      |                                                                    |
|   *--*--*                                                                 |
|      |                                                                    |
|      |                                                                    |
|   *--*--*                                                                 |
|      |                                                                    |
|      |                                                                    |
|      *                                                                    |
|       \                                                                   |
|        \                                                                  |
|         *                                                                 |
|        / \                                                                |
|       /   \                                                               |
|      *     *                                                              |
|      |      \                                                             |
|      |       \                                                            |
|      *        *                                                           |
|      |         \                                                          |
|      |          \                                                         |
|   *--*--*        *--*--*--*--*--*                                         |
|      |           |              |                                         |
|      |           |              |                                         |
|   *--*--*        *              *                                         |
|      |           |              |                                         |
|      |           |              |                                         |
|   *--*--*        *--*--*--*--*--*                                         |
|                                  \                                        |
|                                   \                                       |
|                                    *                                      |
|                                     \                                     |
|                                      \                                    |
|                                       *                                   |
|                                        \                                  |
|                                         \                                 |
|                                          *                                |
|                                           \                               |
|                                            \                              |
|                                             *--*                 *--*--*  |
|                                             |  |                 |     |  |
|                                             |  |                 |     |  |
|                                             *  *--*           *--*  *--*  |
|                                             |     |           |     |     |
|                                             |     |           |     |     |
|                                             *--*  *--*     *--*  *--*     |
|                                                |     |     |     |        |
|                                                |     |     |     |        |
|                                                *--*  *--*  *  *--*        |
|                                                   |     |  |  |           |
|                                                   |     |  |  |           |
|                                                   *--*  *  *  *           |
|                                                      |  |  |  |           |
|                                                      |  |^ |  |           |
|                                                      *  %  %  *--*        |
|                                                      |     v     |        |
|                                                      |           |        |
|                                                   *--*  *--*--*  *--*     |
|                                                   |     |  ?  |     |     |
|                                                   |     |  |  |     |     |
|                                                *--*  *--*  *  *--*  *--*  |
|                                                |     |     ?     |     |  |
|                                                |     |  ^  |     |     |  |
|                                             *--*  *--*  *?-*     *--*  *  |
|                                             |     |                 |  |  |
|                                             |     |                 |  |  |
|                                             *--*--*                 *--*  |
|                                                                           |
|                                                                           |
|                                                         *?-%              |
|                                                         v  v              |
|                                                                           |
+---------------------------------------------------------------------------+

+-- Level -4 ---------------------------------------------------------------+
|                                                            ^              |
|                                                            %              |
|                                                            v              |
|                                                                           |
|                                                                           |
|                                                                           |
|                                                                           |
|                                                                           |
|                                                                           |
|                                                                           |
|                                                                           |
|                                                                           |
|                                                                           |
|                                                                           |
|                                                                           |
|                                                            ^              |
|                                                            M              |
|                                                                           |
+---------------------------------------------------------------------------+