Denver, Colorado, USA

Best known for it for its breweries and mountains, this city is also creating a lot of hype for legally starting marijuana in 2014. The city also possesses lots of beautiful parks, museums etc. Boulder-a hippie college town is a must visit for teens. The League of American Bicyclists has rated the city as one of the third most bicycle-friendly city in the nation. Most Denver streets have dedicated bicycle lanes, which allows a significant number of Denver’s population to be bicycle commuters.