Each sculpture is linked to augmented reality via a QR code which displays archive images of nearby landmarks.
The trail has been organised by the London Heritage Quarter, a recently-formed collective of four central London Business Improvement Districts (BIDs), covering Westminster, Victoria, Whitehall and the Northbank.
BIDs are business-led and business-funded bodies designed to improve specific commercial areas.
It said it launched the art series to “commemorate significant anniversaries” including the National Gallery celebrating its 200th anniversary this year.
The group added it hoped it would benefit local businesses by attracting national and international visitors.
