Your secret place in London is...

St. Dunstan's Church (which is no longer). The original church was built around 1100, but was badly damaged in the Great Fire of London in 1666, and was also bombed during World War II. But this time, instead of rebuilding it, they decided to turn the remains into a garden which opened in 1970. It is a very quiet place, there were some people reading and also some people doing photo sessions because it is a very picturesque place. 

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Also don't miss this Rooftop...

Sky Garden: The Sky Garden gallery on the 43rd floor of the building nicknamed "Walkie Talkie" offers a panoramic view of London unlike any other in the city. A 4,000-square-meter conservatory on the 35th, 36th and 37th floors, it's really worth a visit. On the different levels you will find a bar, a restaurant and a brasserie. If you want to come and watch the sunset, you can visit their website where they tell you the exact time of sunset. From time to time, there are also special events
such as sunrise yoga, live music, etc.

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