In the spirit of greater positivity on the board, let's shine the light on the best value tourist attractions - the rare places which don't look to bleed their visitors dry.

On the same trip to Languedoc last month where the Pont du Gard reduced me to a gibbering wreck, Montpellier zoo restored my faith - a great variety of animals in generous enclosures, a humungous and beautiful park and it was FREE! Far better than virtually any other zoo I've been to.

So, what are the best freebies/cheapies you know?