The capital of Cambodia is named after the hill on which this ancient temple complex stands.

Khmer Rouge's high security prison.

A gruesome memorial for those lost in this area during the Khmer Rouge genocide.

Limestone caves in the Cambodian countryside, once the site of genocide, now a place of peaceful beauty.

5,000 skulls in memorial to those killed by the Khmer Rouge.

A battle between nature and architecture in the Cambodian jungle.

This unassuming tree stump reportedly traces its roots to the famous pharaoh queen's reign.

An ancient instrument used to measure the waters of the Nile so Egyptian farmers would know whether to expect famine or flood.

An extraordinary library and archive dedicated to the history of the Arctic and Antarctic poles.

A treasure trove of astronomical, mathematical, and scientific instruments at Cambridge University.

Numberless clock creates a meal of time for the dreaded, insectile Chronophage.

Used as an example in one of the first dictionary entries for "museum" in 1706.

Ancient Egyptian wigs, South American feather headdresses, a bounty of anthropological artifacts in Oxford.

Home to the most complete dodo remains known - one head, and one foot.

An extraordinary collection of scientific instruments - and Einstein's chalkboard - inside the world's oldest purpose built museum building.

The curios of pharmacist and collector Henry Wellcome.

One part local history, 99 parts gruesome haunted house.

Kings Cross Station pays tribute to its role in Britain's best-selling book series.

Buried in the Laos jungle is a sanctuary for bears that would have otherwise been milked to death by poachers.

This tiered waterfall is so pretty it may cause visitors to cry tears of their own.

Eighty million natural history specimens call this gargantuan museum home.

A island reachable by a causeway at low tide is possibly one of the earliest Western European locations to be identified in text.

The longest hedge maze in the world.

These Egyptian statues have survived for 3,400 years and were an acoustic wonder of the ancient world.