Order by height, shortest first. You place all 26 cards in the right order, one at a time. You start with three lives, and ten right in a row wins a lost one back.
The cards are things that stand up, from objects you could hold in one hand to statues, towers and mountains. You put them in order by height in meters, shortest at the start of the line. The line under each name says exactly what is being measured, such as whether a pedestal or an antenna counts. One card begins on the line with its height showing. Slot each new card into a gap; a right call reveals the height, and a wrong one moves it to its true place and takes one of your three lives.
Everyday objects are easy to picture next to your own body, so common sense handles most of the low end. Famous landmarks are trickier, because photos rarely show anything for scale and some look much bigger or smaller in person than you expect. Statues in particular can surprise you. Read the small print about pedestals and spires, since it can change a lot. At the top, the mountains are measured from sea level to the summit.
Here are 26 of the 26 cards you might be dealt. Their values stay hidden until you place them.