Restoration in the corridors of the main temple at Angkor Wat.

Gazebo at the Royal Palace Complex in Phnom Penh.

Nature and ruins are one in Angkor Thom.

Buddha's statue in the Vipassana Dhura Buddhist Meditation Center in Oudong, Cambodia’s former capital

The largest of all Angkor's temples and one of the best preserved. Surrounded by a huge rectangular reservoir and an outer wall measuring over 3km in length, the temple consists of three tiered galleries and five towers shaped like lotus buds.

Brahma Spire Atop the Throne Hall in the Royal Palace Complex in Phnom Penh, Cambodia.

This World Heritage Site is the epitome of the high classical style of Khmer architecture, and it has become a symbol of Cambodia, appearing on its national flag.

Angkor is also a vernacular form of the word nokor, which comes from the Sanskrit word nagara (capital), while Wat is the Khmer word for temple.

Nature and ruins are one in Angkor Thom.

The monks of the Oudong Buddhist Monastery in Cambodia carved and maintain this amazing topiary gazebo.

According to Buddhist myths, Phra Mae Thorani is personified as a young woman wringing the cool waters of detachment out of her hair to drown Mara, the demon sent to tempt Gautama Buddha as he meditated under the Bodhi Tree.

The Preah Thineang Chan Chhaya or "Moonlight Pavilion", is an open-air pavilion that serves as a stage for Khmer classical dance in the past and present. It is one of the most notable buildings of the palace as it is easily seen from the outside as it was built alongside a section of the palace walls.

The Tuol Sleng Genocide Museum or simply Tuol Sleng, is a museum chronicling the Cambodian genocide. Located in Phnom Penh, the site is a former secondary school that was used as Security Prison 21 by the Khmer Rouge regime from 1975 until its fall in 1979. From 1976 to 1979, an estimated 20,000 people were imprisoned at Tuol Sleng and it was one of between 150 and 196 torture and execution centers established by the Khmer Rouge and the secret police known as the Santebal (literally "keeper of peace").

Hanoi Hilton Museum in Vietnam. Sen. McCain spent parts of his five and a half years as a POW there.

The Silver Pagoda is a Buddhist temple located on the south side of the Royal Palace in Chey Chumneas, Phnom Penh. The official name is Wat Ubaosoth Ratanaram, also known as Wat Preah Keo Morakot, "Temple of the Emerald-Crystal Buddha") which is commonly shortened to Wat Preah Keo in Khmer.