Europe! You're so quirky. Specifically one Crowne Plaza Hotel in Denmark, which rewards guests who pedal on electricity-generating exercise bikes for 15 minutes with food. How long would I have to ride for a minibar pass?

Once a hotel guest has produced 10 watt hours of electricity (which takes about fifteen minutes), they're rewarded with a $36 meal voucher. Pretty good deal! It's also not the hotel's only green initiative—it also has solar panels affixed to the roof.

Advertisement

The deal begins on April 19th to continue for a full year, assuming no aspiring Lance Armstrongs show up to clean out the pantry. [BBC via PopSci]