Parts of London's new underground line, the Elizabeth line, will open in December 2018. Pictured, the new Canary Wharf station.
The Elizabeth line will stretch more than 60 miles from Reading and Heathrow in the west through central tunnels across to Shenfield and Abbey Wood in the east.
The line is expected to be completely operational in December 2019.
Ten new stations will be built, including Woolwich Station, pictured here.
An aerial view of the new Woolwich Station.
Construction of the line will cost $20bn and will contribute to a 10% expansion to Central London's transport capacity.
Pictured left, the new, streamlined trains, compared to a current models, right.
These seven-carriage trains are just over 160 meters long.
The line was named in honor of the UK's Queen Elizabeth II.
There will be a total of 41 stations, including well-known London locations Paddington Station, Bond Street and Liverpool Street Station.
Thirty stops of the 41 will be newly renovated and the line is expected to serve around 200 million people each year.
It will also cut some journey times significantly: a trip from Paddington to Liverpool Street will fall from 23 minutes to 10 minutes.