Which place could this be?
It is a pavement.
    src        edge_attr  dst
0     0   to the left of    1
1     1  to the right of   13
2     1   to the left of    5
3     1  to the right of    0
4     3   to the left of   14
5     3   to the left of   15
6     5  to the right of   12
7     5  to the right of    1
8     6  to the right of    8
9     6   to the left of   11
10    8   to the left of    6
11    8   to the left of   11
12   10  to the right of   11
13   11   to the left of   10
14   11  to the right of    8
15   11  to the right of    6
16   12   to the left of    5
17   13   to the left of    1
18   14  to the right of    3
19   14  to the right of   20
20   14  to the right of   21
21   15  to the right of    3
22   15               in   14
23   17   to the left of   18
24   18   to the left of   19
25   18  to the right of   17
26   19  to the right of   18
27   20  to the right of   21
28   20   to the left of   14
29   21   to the left of   20
30   21   to the left of   14