When Rosetta finally makes its rendez-vous with Comet Churyumov-Gerasimenko this fall, we're expecting to learn all kinds of new things about the surface of the comet. And that surface is a gigantic one, as this chart comparing the size of the comet to the landmarks of Earth, shows.
The human-made objects, whether world's tallest building Burj Khalifa or the familiar silhouette of the Eiffel Tower, barely made a dent in the comet. To really get a sense of its scale you have to look at Earth's mountains. Not even the heights of Mounts Fuji or Olympus can quite measure up to the size of the 4,000 meter comet.