You may be able to guess this one quickly—cykel is the Danish word for a bike. The history of the Danish commitment to creating bicycle friendly cities dates back decades and other cities around the world have long looked to Copenhagen for guidance. The city’s bike share system, Bycyklen, has state-of-the-art models complete with carbon-neutral motors for any hills—though finding a hill to climb can be a challenge in largely flat Copenhagen. The price per hour is less than $4 making it an inexpensive option if you want to try pedaling around for an afternoon. (The city also has countless private bike rental shops.) Copenhagen’s new Bicycle Snake (shown here) is an orange bicycle bridge soaring over the harbor and connecting Vesterbro with Amager Island that became a favorite of urban designers and architecture critics as soon as it opened. It also makes it easier to reach the new development of Ørestad, on Amager Island, a showcase of daring buildings from the world’s leading architects including the VM Houses from Copenhagen’s most famous one working today, Bjarke Ingels. Whether you hop on a bike to see the latest contemporary masterpieces or Renaissance castles, there is no city in the world that makes it easier to explore on two wheels. Ready to take flight? Traveling to Copenhagen has never been more convenient. Fly non-stop to Copenhagen with Scandinavian Airlines from several gateways in the U.S. including San Francisco.