It is expected to be finished in 2014, when the train set will cover more than 1,800 square meters (19, 376 sq ft)
It comprises 700 trains with more than 10,000 carriages and wagons
The longest train is 46ft long
The scenery includes 900 signals, 2,800 buildings, 4,000 cars - many with illuminated headlights...
...and 160,000 individually designed figures
Thousands of kilograms of steel and wood was used to construct the scenery...
The 250,000 lights are rigged up to a system which mimics night and day by automatically turning them on and off
The whole system is controlled from a massive high-tech nerve centre
In total the set has taken 500,000 hours and more than ï¿½8 million to put together, the vast majority of which has come from ticket sales
Gerrit said: "Our idea was to build a world that men, woman, and children can be equally astonished and amazed in"
Frederik added: "Whether gambling in Las Vegas , hiking in the Alps or paddling in Norwegian fjords - in Wunderland everything is possible"
The world's biggest model train set.
It comprises 700 trains with more than 10,000 carriages and wagons. The longest train is 46 ft long. The scenery includes 900 signals, 2,800 buildings, 4,000 cars - many with illuminated headlights and 160,000 individually designed figures. Thousands of kilograms of steel and wood was used to construct the scenery. The set is on display to the public and is so big that they employ more than 160 people to show visitors around their creation.