What place could this be?
It is a swimming pool.
     src        edge_attr  dst
0      0   to the left of   22
1      0   to the left of   19
2      0   to the left of   23
3      2   to the left of   26
4      2   to the left of   22
..   ...              ...  ...
154   26  to the right of   19
155   26  to the right of   23
156   27  to the right of    4
157   27  to the right of    9
158   27  to the right of   14

[159 rows x 3 columns]