A wishing well that works. But be careful !
Anything you ask this statue for will be at least double what you expect.

So make sure, as soon as you are there and drop a coin do not ask for too much:
http://www.guardian-series.co.uk/news/13622206.Stolen_Virgin_Mary_statue_replaced_after_fundraising_effort/?ref=mr&lp=12

2 women recently prayed to conceive a child at the statue and left a coin.
Both are expecting twins.

1 teenager prayed for a boyfriend at the statue and left a coin.
Now she cannot decide between 2 boys.

A young girl from India prayed for a new violin for herself and her sister and left a coin.
Her father got 4 violins in a stock clearance on ebay for next to nothing.

A broken father of 3 children prayed for a new job after 2 years of unemployment and more than a 100 job applications and left a coin. The next day he got accepted for a new job earning almost twice as much as in his previous position.

Coincidence ? Maybe, but not really.

The statue is situated next to St. Michaels church (church of England) in London, Walthamstow -> Palmerston Road -> Postcode E17 6PQ -> United Kingdom.
The statue has been setup by a person anonymously and is said to belong to the catholic church.
The place were she has been placed has been a herb garden of the once situated Lee Valley monestry of the catholic church - one of the rare places where pestilence has been treated successfully in the 15th century.