This monument is the first of its sort; it represe...

This monument is the first of its sort; it represents the symbol used in the concentration camps to mark gays, like the Star of David for Jews.
Gays were banned (and forcebly removed) from the war monument on De Dam on the fourth of may, which marks the Remembrance of the Dead, and is concidered a day to commemorate all who died in the second world war. Gays were banned, in part, because being gay was concidered a mental illness in the Netherlands untill the 1990's.

The monument itself is easy to miss; a small dockside on the water and a symbol on the street which is usually crowded (due to the everpresent Anne Frank House's queue).