It has had months of hype and now finally Luxembourg's free public transport has begun.
With a population of only 614,000, it may be one of Europe's smallest countries and the idea is not unprecedented.
But the "free mobility" drive has captured the imagination. Buses, trams and trains are now free to ride on and you don't need a ticket.
One aim is to ease traffic congestion but critics see it as a PR stunt.
"The government wants Luxembourg to become a laboratory for mobility," says Mobility Minister François Bausch, who points to the grand duchy's fast-rising population, with a rise of 40% in 20 years.
