Manyย of us probably think of checkpoints and barriers when we think about borders between international countries, particularly border crossings. ย
Borders can demark more than just the transition from one country to another. ย Borders can highlight the effects of different policies (or lack thereof) can have on the environment from one country to the next. ย
Borders can also be almost unnoticeable, with residents of separate countries living right next to each other.
Longest Border
The longest continuous international border is the United States/Canadian border and is 5,525 miles long.ย The entire length of the border has a stripped of deforested land measuring 20 feet across.ย
Robert Krulwich of NPR dives deeper into the oddities of this border in his pieceย ‘Don’t touch me,’ said Canada. ‘I won’t,’ said the US. So, they moved 20 feet apart.ย
Included is a short video by C. Grey which provides a comedic look at the history of the border between the US and Canada:
Highest Border
The international border betweenย Chinaย and Nepal crosses the precise summit point of Mount Everest which peaks at 8,848 metres (29,029ย ft) above sea level, making it the highest border in the world. ย

Most Guarded Border
The Korean Demilitarized Zone (DMZ) is a strip of landย 250 kilometres (160 miles) long,ย approximately 4ย km (2.5ย mi) wide that separates North and South Korea. ย
Created in 1953, it is considered the most heavily guarded border in the world. ย The area of land within this zone is almost exclusively uninhabited by humans and has become the world’s mostย well-preserved region of temperateย habitat. ย
A number of endangered species such two of the world’s most endangered bird species, theย red-crowned crane, and theย white-naped crane safely occupy the area despite the number land mines (CNN, 2003). ย There have also been possible sightings of the very rareย Korean tiger,ย Amur leopard,ย andย Asiatic black bear.ย
Ecologistsย have identified some 2,900 plant species, 70 types of mammals and 320 kinds of birds within the narrow buffer zone.

Most Divided Border Town
The Belgium town ofย Baarle-Hertog is complicatedly intertwined with the town ofย Baarle-Nassau in south Netherlands. ย There are 26 enclaves ofย Baarle-Hertog, the smallest of which (H22 on the map) is onlyย 2,632 square metres (about 28,330 square feet) in area. ย
The puzzles pieces of Baarle-Hertog date back toย medieval treaties, agreements, land-swaps and sales between the Lords of Breda and the Dukes of Brabant.

The intricate border pattern is marked by iron cross pins that indicate with a tiled B for Belgium on one side and a tiled NL on the other which country is which.

Most Lit Up Border
Most borders, being a political line that doesn’t necessarily follow natural structures, are pretty invisible lines. ย
NASA posted a striking photo taken on August 21, 2011ย from the International Space Station showing the clearly visible lit up border between India and Pakistan. ย
The orange lights and fencing were installed by the Indian government along parts of its border with Pakistan to thwart smuggling and arms trafficking.

