From tuk-tuks to junkboats, trains, and everything in between, travel is essential whether it's going to the market or half way around the world.

Some forms of travel may seem unusual to us, but cramming into an underground tunnel may seem just as strange to others.

In Togo, West Africa, hail down an unmarked motorcycle and jump on. A motorized three-wheel rickshaw known as a tuk-tuk will get you around many Asian countries; but watch your head when getting in or you'll have a lasting bruise from the low ceiling. In many Midwest states of the U.S., it's not unlikely to see a farmer driving their tractor or lawn mower down the highway.

From arctic sled dogs to Wild West horses and desert camels, animals are still widely used as a mode of transportation across the globe. They'll get you where you need to go, just a little slower!

Overpopulation in cities around the world has led to increasingly odd ways of travel, be it piling on top of a train or making a car look like a circus act. India, with a population of 1.2 billion people, is quickly becoming the center of this type of travel as passengers crowd onto every form of transportation possible, like bicycles, trains, and rickshaws. It's a quick way to get to know someone when your unintentionally sitting on their lap.

Here's a look at some of the unusual ways people get around:

Transport 1
A man transports used empty plastic cans on a horse cart to a junkyard at Panchkula in the northern Indian state of Haryana Reuters
Transport 2
Farmers transport wheat crop on camels at Pipalgaon village on the outskirts of the northern Indian city of Allahabad Reuters
Transport 3
North Koreans look at a Chinese boat for tourists on Yalu River near the North Korean town of Sinuiju Reuters
Transport 4
An internally displaced family, who fled a military offensive in the Swat valley region, travel with their belongings loaded on a vehicle as they enter Buner district Reuters
Transport 5
Hindu devotees travel on a crowded passenger train to take part in the "Guru Purnima" festival in Goverdhan town near the northern Indian city of Mathura Reuters
Transport 6
Men transport a rickshaw onto a donkey-cart on the street of Lahore, Pakistan Reuters
Transport 7
A man yawns while riding on a donkey cart loaded with recyclable materials in Changzhi, China Reuters
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