What is located on top of the roof?
The cross is on top of the roof.
    src        edge_attr  dst
0     0   to the left of   24
1     1   to the left of   24
2     1   to the left of   28
3     2   to the left of   28
4     2  to the right of   10
..  ...              ...  ...
56   28  to the right of    7
57   28   to the left of   27
58   28   to the left of   15
59   29   to the left of   28
60   29  to the right of   26

[61 rows x 3 columns]