This 1000 piece puzzle features the iconic modern day London Underground tube map, which was first designed in 1931 by Henry C Beck and based on circuit diagrams he drew for his day job as an engineer. The sprawling transport system has 270 stations and is made from 250 miles (400 km) of track. No other city is as recognised by its transport system as London. Its red buses, black cabs and Tube trains are known around the world.