Harry Potter themed photo-op at King’s Cross Train Station with a luggage trolley embedded in the brick wall.

Vast gardens with trees and flowers from around the world and huge greenhouses.

Strawberry Hill House is Horace Walpole’s gothic castle open for visitors

Photo-spot with views of Gherkin and other high-rise building outside the Liverpool Street Station near the Bishopsgate and Primrose Street intersection.

The Tate Modern is London’s free national museum of modern and contemporary art and also featuring panoramic views from the viewing level

Often referred simply as monument, the column commemorates the great fire of 1966. The column offers panoramic 360 degree views from the top (Need to climb the stairs to the top).

Sky Garden is a free observation deck (however, may need to reserve the spot in advance) and landscaped public gardens featuring restaurants, bar and  panoramic views from the 43rd floor