Another good spot, where you can train for hours.
Here you can do all kinds of elements - wall spins, palm spins, many vaults, including "famous" double king kong, train balance, do monkey to precision, cat leaps, big cat to cat, wall runs, monkey to roll, wall hops etc.
He-he, this spot is one of our favorites here in Plevki.
It has many ledges, and you can even try triple king kong! Besides, you can also do blind jumps, double king kong, long jumps, precisions, hand walking down and up the stairs, monkey precision, train your landings and rolls etc.
Another good spot for training.
Here you can again do many vaults, train your balance, make long jumps, climb up the walls, and do precisions etc.
One more good place for training all kinds of elements.
Here you can improve your wall run, long jumps, of course wall spins, palm spins, all kinds of balance, precisions, climbing up and down between two walls, cat leap level to level, many vaults, even cat to cats etc.
There might be problems with security of nearby shop, but if you have enough fast legs or are just calm there won't be any problems. 
Just perfect spot for training your balance!
Try simple balance, cat walk, hand standing on the rails, hand walking up and down the steps etc.