Rebus answers:
1: Colorado's postal code is CO, followed by Vladimir PUTIN between MG gives COMPUTING
2: cos y divided by sin y equals COT Y, and with the UN in the middle, we get COUNTY
3: December 7, 1941 was the date of the attack on PEARL HARBOR, so leaving behind the PEARL, we're left with just HARBOR
4: this is just a bottle of JACOB'S Creek vintage chardonnay
5: 0 in tennis is called LOVE, a cubic decimeter is equivalent to a liter, which has symbol L, and the card is the ACE of spades, giving us LOVELACE
6: the Virgin MARY containing the letters ILIT gives MILITARY
7: the switch is OFF, and taking the R from Condoleezza RICE and moving it to the end, we get ICER, making OFFICER
8: the nation of OMAN containing the letters TTO gives OTTOMAN
9: we have PI, ONE, and a portrait of Queen Elizabeth, also known by her monogram, ER, giving PIONEER
10: SETH Rogan containing the letters VEN gives SEVENTH
11: elements 16, 8, and 7 are S, O and N, respectively, so we get SON
12: the glyph on top is a combination of the hiragana syllable SU and the letter F, while at the bottom we have the Newport FOLK festival. Putting these all together, we get SUFFOLK
Now, let's try to organize these into groups:
a SUFFOLK COUNTY HARBOR is SAG
one rank of an OTTOMAN MILITARY OFFICER was AGA
JACOB'S SEVENTH SON was GAD
LOVELACE COMPUTING PIONEER refers to ADA
Combining all of these, we get
SAGADA, a Filipino town noted for its custom of hanging coffins!