Assassin's Creed II/Races

Florentine sprint
The race starts with 1:30 minutes on the clock. Head into the first marker going into the plaza outside the palazzo, then continue through the next one on your way to the crates with a white sheet along the northern wall where the third white marker is. Free run up the crates to the building on the west side of the plaza, then up that wall to the roof and into the next marker. Going straight ahead, jump across the street to the next roof over to the west, then run to the other side of the roof and take the narrow walkway over so you can jump to the wooden platform with the next marker. Turn and climb up the wall, then run down the roof to the next marker, then carefully run over behind the roof garden and jump out onto the wires running across the street to the west. You'll pass through another marker on your way, after which you should run down the roof to the left, through the next marker, and to another roof garden. Turn south there and jump across to the building and climb up to the marker on its roof. From there head to the other end of the roof where you can pass through a marker and jump to the top of another roof garden. Jump to the railing below and then over to the next roof and through another marker. From there turn west and jump over to the next roof where you'll find a white marker on top of a chimney. Make a leap of faith over the side of the building from the chimney and run down the steps to the west to the final marker in the middle of the street.
 * Memory start: Talk to the thief standing by the northwest corner of the Palazzo Della Signoria in Florence.
 * Reward: 100ƒ

San Marco scuttle
You'll have three minutes on the clock when the memory begins. Head northwest to the first target, back toward the city. Hop the wooden fence and head up the stairs through an arch to the next target. Turn the corner there and head down some steps to the next one before turning left around another corner and free running up the nearby crates, then over some beams to the marker on top of the next set of crates. Stay above the street and hop along the beams to the next marker on a wooden platform hanging down from above. Continue along the beams and wooden walkways around the side of the building on your left through two more markers then climb up two roofs in front of you to the white marker at the top. Take the wires across the street on the other side of the roof, then go through the next marker and jump to the chimney, then to the far roof where the next marker is. Don't bother with the guard here – just run past him down to the end of the roof and take the wires across to the next roof with a marker on it.
 * Memory start: Talk to the thief in the grass by Florence's eastern wall, south of the east gate.
 * Reward: 1,500ƒ

Run straight across the roof past the wooden crane and jump to the scaffolding across the gap, then run down the roof it's attached to, to the next marker. Keep going in the same direction to the next marker on the side of a roof garden. Run in the same direction and jump to the railing of the balcony across the street and run over to the roof of that building, where you can take the wires across the street through another marker. The next one is right next to you when you get across the wire, then run through another one on your way to the roof garden at the end of the roof. Jump from the side of it to the roof with the next white marker, then climb up to the chimney it's on. Jump across the wooden railings on the building next to you to the next roof over, then turn west and run over to the roof below to hit the next marker. From there, you should see the next white marker down in the street in front of you.

Avoid the wooden beams, and jump to the hanging platform, then down to the street right in front of the marker. Continue down the alley through two more markers before coming out into the main thoroughfare, where you'll turn right to get to the next marker. Two more markers in the middle of the street will lead you to some crates with a white sheet. Free run up them and across the beams on the side of the building to the next marker on a platform just below the roof. Climb up to the roof and go west to the marker in the middle of the roof. Jump down to the roof below in the same direction, head through the marker there, then continue northward to the next roof. Go through the marker, then head north along the roof to the perpendicular one and take that one west to where you can climb up to the next marker. Climb up the next roof to the marker below the ladder, then take the ladder up to the last marker on top of the roof.