Between Spain and Portugal lies a small bridge only 6 meters long, making it the shortest international bridge in the world. This bridge not only separates the two countries but also divides them into different time zones. However, crossing this bridge only takes a few steps, and there is no need to show a passport, so one might not feel like they have crossed a border at all.
The globally shortest international bridge is known as the Marco International Bridge, spanning the Abrilongo River, connecting the villages of El Marco in Spain and Varzea Grande in Portugal. It is approximately 6 meters long and 1.45 meters wide, designed for pedestrian and two-wheeled vehicle traffic only due to its size and infrastructure.
In addition to separating two countries, this bridge also divides two time zones, with Spain following Central European Time and Portugal using Western European Standard Time, resulting in a one-hour time difference between the two sides.
Therefore, even though crossing this small bridge only requires a few steps, one must adjust their watch or phone by one hour, creating a unique experience of time travel.
The bridge’s appearance is very modest, constructed as an environmentally friendly structure with wooden flooring and railings made of tree trunks. With funding from the European Union, it was rebuilt in 2008 to replace the simple wooden bridge that had been in use for many years.
Historically, this bridge played a significant role in local trade, although not all of the trade was legal. For decades, people used the bridge for smuggling products such as coffee, olives, alcohol, and knives.
It was not until 1996, following the Schengen Agreement, that Spain and Portugal abolished border controls between the two countries, allowing residents on both sides of the bridge to freely cross without passport checks, including tourists.
Before the Marco International Bridge claimed the title of the world’s shortest international bridge, the previous record holder was a bridge on Zavikon Island, located between the United States and Canada. However, the length of that bridge is more than three times longer than the Marco International Bridge.
Interestingly, the Spain-Portugal border also features the world’s only cross-border high-altitude zipline, traversing the Guadiana River and allowing participants to “reverse time.”
Starting from Sanlúcar de Guadiana in Spain and ziplining into Alcoutim in Portugal, due to the time difference, travelers will find themselves one hour ahead upon arrival than when they departed.
For instance, if the local time is 4 pm when embarking, upon arrival, the local time will be 3 pm, creating a sensation of time flowing backward by one hour.