THE most important part of the trip is the research you do before you go anywhere! Get familiar with these sites and know what to look for.
STEP 1 is London!
London was short and sweet, I spent the most time in Santorini! Almost a full week. I really loved feeling like I knew the island and would 10000% come back to Greece!
Last stop: Paris! Enjoyed 5 days, 4 nights here.