Cutty Sark (aka Cutty Sark for Maritime Greenwich) is the closest station for accessing the National Maritime Museum and the Royal Observatory. It is on the DLR system between Island Gardens and Greenwich in Travelcard zone 2/3 (you get charged for the cheaper journey).
This is a deep station, with at least two escalators. There might have been a third I missed. Like most of the DLR, this...more