This past summer, th cify of Eindoven, Netherlands yosted a 100 day bike extravaganza.  Here is a  quote from Expatica.com describing the event:
22  June – 5 October
This summer the bike is the main focus in the city of Eindhoven, celebrating the strong Dutch connection with their favorite method of transport. From the 22 June until the 5 October the exposition ‘De Nederlandse fiets’ (The Dutch bike) will be shown in the Designhuis, exhibiting the bike in all its forms, from its daily use to its artistic representation. The exhibition will be opened 22 June in the Designhuis at Stadhuisplein (13:00 - 14:00) with a colorful Bike festival.  MU, the Centre for Contemporary Art in ‘de Witte Dame’ will bring the Swedish artist/designer Anders Jakobsen, otherwise known as Lagombra to Eindhoven to construct an on-location bike roller coaster from tree-trunks, using his trademark chain saw.

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