I will take you to Banteay Srei, small temple built on low base platform which very easy to walk around for old people. Banteay Srei is one of the most beautiful temple in Angkor.

Phnom Kulen, the holy mountain of Cambodia and it is birth place of the great Angkor empire. You will see 1000 Lingas carved on river bed about thousand years ago, Angkor king made it to convert fresh water to sacred water by Hinduism believe.
Big reclining Buddha carved in from big rock in 16 century.
And finally, the great waterfall to swim for good luck and refreshing.
On the way back you will see two more beautiful temples East Mebon and Pre Rup.

Pre-dawn at 5.00am to sunrise at Angkor Wat. In the early morning after sunrise most people leave Angkor Wat then it is the best time to explore temple with less crowded.

After Angkor wat tour, It time to explore the jungle temple! To Ta Prohm, Ta Nei and Preah Khan. These late 12 century Mahayana Buddhist temple are not much conservation and restoration so the temples are ruin and overgrown with big tall trees and vine. It look like great nature claim human building after people had abandoned it! They are low base temples not much steep step.

Bayon, the main temple of Great Angkor King Jayavarman VII, he designed and built this temple differently from previous kings, not Hindu temple anymore but the first Mahayana Buddhist state temple. Most of the 49 towers carved as Big smiling faces of Buddha or of himself, the smiling of compassion or Mona Lisa of the east!