1) Here is 'inside' scoop, the last name of your presidential treasure.  Use the alphabet to solve this puzzle 22-1-14-0-2-21-18-5-14. Once you figure out who the president is, FIND HIM sitting downtown somewhere.  He sits not 6th or 7th but as the 8th president of the United States.  Take a team picture posing as him, with him.

2) North of the street  
that's named after Joe
And the hotel
that's named after Alex
You’ll find an alley
that's named after Art

You’ll find crazy cartoons
And among these bafoons  
Lay numbered red balloons
Find one, two and three

3) Find a history marker near Washington statue
Read its stories and follow this clue
Find the place the pipe organ was moved too
The following code unfolds on a wall near there.