Three days will give you a taste of Siem Reap and its archaeological sites with time for a handful of other engaging experiences. Spend the first day focused on the star sights at Angkor Archaeological Park, like Angkor Wat and Angkor Thom, home to Bayon and Ta Prohm. On day two venture out to lesser visited temple ruins such as Koh Ker and Beng Mealea. On day three, do a cooking class and walking tour or floating village cruise. Spend your evenings seeing cultural shows, shopping and dining.