CHINA, Gansu, Steam Train detail of wheels.

Ireland, County Cork, Ballinascarthy, Stainless steel replica of a Model T Ford in the area Henry Ford̢۪s father William Ford grew up in.

Ireland, County Cork, Clonakilty, The Michael Collins Centre Museum at Castleview outside Clonakilty, Replica of the Sliabh na mBan armoured car used by Collins on the day he was assassinated.

Israel, Jerusalem, Jerusalem Archeological Park, A set of wooden wheels used the Metagenes method to move heavy blocks of stone in construction projects in ancient Jerusalem. The Old City of Jerusalem...

Older Tibetan women in traditional dress circumambulate the Jokhang Temple with their prayer wheels in Lhasa, Tibet.

Older Tibetan women in traditional dress circumambulate the Jokhang Temple with their pray wheels in Lhasa, Tibet.

Older Tibetan women in traditional dress circumambulate the Jokhang Temple with their pray wheels in Lhasa, Tibet.

Older Tibetan women in traditional dress circumambulate the Jokhang Temple with their pray wheels in Lhasa, Tibet.

Older Tibetan women in traditional dress circumambulate the Jokhang Temple with their pray wheels in Lhasa, Tibet.

A Tibetan woman turns the prayer wheels at the Drepung Buddhist Monastery near Lhasa, Tibet.

The Drepung Monastery was founded in 1416 A.D. and was the largest monastery in all of Tibet, housing up to 10,000 monks at one time. Near Lhasa, Tibet.

The Drepung Monastery was founded in 1416 A.D. and was the largest monastery in all of Tibet, housing up to 10,000 monks at one time. Near Lhasa, Tibet.