The Embassy is a charged socialization tool in the Space Stage of Spore.
Usage[]

The Embassy on a planet's surface.
The Embassy provides a diplomatic bonus between the player and the target race. The color of the flags and embroidering on the embassy matches that of the owning player.
The maximum bonus an embassy can provide to a player's relationship with another empire is 50. The Grox, however, appear resistant to the embassy, and will only give +10 when deployed on a Grox planet.
The embassy is mainly used to keep the relation bonus of other allies above 70 (green face) so they don't "lose interest" in the alliance as most positive relation modifiers will wear off overtime. With an embassy and a trade route established, they can persistently provide a total of +80 relation points, enough to keep most allied empires in ally status.