Nezu Jinja, a Shinto shrine located in central Tokyo, was founded about 1900 years ago and it still preserves a set of buildings built in 1706. Shrines which still preserve their complex built in the feudal times are quite rare in the middle of Tokyo - it means they survived the Great Kanto Earthquake of 1923 and air raids in WWII - and of them this shrine is the largest.

There are around 3,000 azaleas plants and 100 different varieties in bloom inside the shrine's expansive grounds. Within Japan and Tokyo, it is rare for shrines to hold large-scale festivals featuring flowers and nature, making this event especially unique.