Find a country or territory with a longer coastline.
Test your knowledge of Coastline length in a Peakle trivia climb. Each answer must be higher than the last, using km as the scale.
Play Coastline lengthUnderstand the measure
Peakle turns Coastline length from a one-off fact question into a progressive comparison challenge. This geography route rewards players who remember that a country’s outline can matter more than its map footprint, especially when islands and measurement methods enter the picture. You can begin with any valid answer, then keep choosing a larger item on the published scale; familiar and surprising entries together test how well you understand the category.
This route uses km as its comparison scale and keeps the 2000 World Resources Institute (2000), via Wikipedia comparison table dataset visible so the rules can be checked. Coastline length depends on the source’s map scale and definition. It should not be treated as a perfectly fixed ruler measurement, especially for irregular or island-rich coasts. Values are shown at the precision used by the source, so the goal is to compare published records consistently rather than guess at extra decimals.
A reliable approach is to choose a comfortable starting point, reserve obvious high-value answers for later, and watch for near-ties. Look for countries with long, irregular, or island-filled coastlines. A compact mainland shape can be misleading, while a scattered archipelago may climb quickly. If two candidates seem close, use the displayed value and source definition instead of relying on memory; one invalid step ends the climb, but every run teaches you more about the shape of the dataset.
The route
Pick an item from the answer bank to set your starting point.
Every next answer must be larger than the one before it on the published scale.
One wrong, repeated, or equal answer ends the climb and records your score.
Evidence behind the climb
This route uses World Resources Institute (2000), via Wikipedia comparison table data from 2000. The question asks you to compare Coastline length using the published values.
Before you climb
Choose an answer, then keep choosing a larger value measured in km. The goal is to build the longest valid chain you can.
This route uses km as its comparison scale and keeps the 2000 World Resources Institute (2000), via Wikipedia comparison table dataset visible so the rules can be checked. Coastline length depends on the source’s map scale and definition. It should not be treated as a perfectly fixed ruler measurement, especially for irregular or island-rich coasts. Values are shown at the precision used by the source, so the goal is to compare published records consistently rather than guess at extra decimals.
This route is based on World Resources Institute (2000), via Wikipedia comparison table data from 2000, using the World Vector Shoreline, 1:250,000 scale indicator. Use the source link on the page to inspect the original dataset.
Why can coastline rankings vary between sources? Different map scales count different small inlets and bends, so the published methodology matters.
This category page is available in English and Chinese.