Monteriggioni statuette

During the Renaissance, the Assassin Ezio Auditore could locate eight statuettes of Roman gods, which were scattered throughout the town of Monteriggioni.

Once a corresponding pair was set upon their designated pedestals, behind the Villa Auditore, a mechanism activated and revealed 2000 florins. Accompanying this, it would also increase the value of the town.

Statuettes

 * Neptune
 * Pluto
 * Jupiter
 * Minerva
 * Diana
 * Apollo
 * Mars
 * Venus

Pedestals
Each pedestal had its own message, describing the pair of statuettes that sat upon it.
 * Neptune and Pluto: Two brothers rest here. One resides fathoms deep, the other at the end of time.
 * Jupiter and Minerva: Here sits the king of all Olympus and beside him stands wisdom, to guide his rule.
 * Diana and Apollo: Together, but never touching. One sleeps while the other rises, yet both watch over us.
 * Mars and Venus: The god of rage and strength basks in his lover's radiant beauty. She tames his anger with her gentle touch.

Jupiter
On the south-eastern wall of the church.

As Jupiter was located high up on the wall of the church, it could either be reached by climbing the church and dropping down its eastern wall, or by climbing Monteriggioni's Mercenary Guild and jumping to reach the statuette.

Neptune
To the north of the courtyard fronting the church.

When facing the entrance to church, Ezio could turn left and look behind the small tree next to the church's courtyard. From there, the statuette was attached to the wall just behind it.

Pluto
On a wall south-east from the Villa entrance.

Pluto is located at the top right corner of the village, just east of the training arena. After finding Neptune, it may be reached by climbing the building directly in front of Ezio until he was in line with the arena. Afterwards, he would need to drop to the left, towards the arena.

Mars
On a wall south-west from the Villa entrance.

Mars was almost at a mirrored location to Pluto, and could be found by going directly west from finding the Pluto statuette. It was attached to an east-facing wall to the west of the training arena.

Venus
On a wall of the western-most building, closest to the Villa.

Venus was located on the western wall of a small building, which was north-west of the building on which Mars was located. The statuette was attached to the wall just above a wooden scaffolding.

Apollo
At the south-west corner of the town, on the building just north of the brothel.

Apollo could be easily found by looking north from the roof of the brothel. It was attached to the second floor of the adjacent building, just above and to the left of an archway.

Diana
On the northern wall of a building directly in front of the town's gate.

Similarly to Apollo, Diana was just above and to the left of an archway. The statuette could be easily found by looking to the south of the courtyard with a lush tree, in line with a street crossed over by several wooden beams.

Minerva
On a building just to the east of the town entrance.

Minerva was on the corner of a building that was attached to a walled in courtyard with a small tree, similar to the courtyard in which Pluto was located. The statuette was on the opposite side of the building to the tree, on a low roof in the south-east corner.

Trivia

 * Two statuettes, Minerva and Jupiter, had been revealed to represent members of the First Civilization.
 * Proximity to a statuette was signaled by a 'shimmering' sound effect identical to the ones heard near treasure chests, Glyphs and Codex pages, as well as the decipher fragments in The Lost Archive.
 * Strangely, all of the statuettes are missing from their pedestals at the beginning of Assassin's Creed: Brotherhood, before the Siege of Monteriggioni had occurred. No explanation was given.

Reference

 * Assassin's Creed II