The Russian Federal Highway runs from Moscow city to the Siberian city of Yakutsk.
The last 600 miles is called the "Lena Highway".
This bizarre road runs parallel to the Lena River on the final leg to Yakutsk.
The North Yungas Road, also known as El Camino de la Muerte (Spanish for "Road of Death"), is a 43 mile road that leads from La Paz to Coroico, 35 miles (56 km) northeast of La Paz in the Yungas region of Bolivia.
There is an interesting story behind its development.
Before 1972, access to the nearby Guoliang village was limited to a very difficult path carved into the mountainside.
The village was nestled in a valley surrounded by towering mountains.
It was basically cut off from civilization.
1972, a group of desperate villagers decided to take matters into their own hands - they would carve a road right into the side of the mountain by themselves!
Huashan consists of five peaks.
When seen in a certain way, the five peaks of Huashan look like five petals of a flower.
Originally Hua was called Xiyue - meaning 'Western mountain' - because it was the westernmost of the five sacred Taoist peaks.
Formerly the five mountains were dotted with temples but today only a few remain.
These days the majority of visitors to Huashan are Chinese youth on vacation.
However the mountain routes are still trekked by devoted pilgrims and wandering monks intent of visiting the shrines.