Interestingly, on a true vertical log plot, I think the Eiffel Tower's sides would really be straight lines.
Height [Explained]
Transcript
Caption: Top of observable universe.
[Black Hat is standing on top, throwing a black kitty down.] Black Cat: Mrowl!
[Map of the universe from observable universe to Earth. Each area of item is labeled. Labels left to right, up to down:]
(46 billion light years up) Hubble Deep Field Objects One billion light years: Great Attractor. Antennae Galaxies (colliding). Andromeda.
Holy crap lots of space.
One million light years: Magellanic Clouds. Edge of galaxy. Galactic center. Crab Nebula. Orion Nebula. Horsehead Nebula. Romulan neutral zone. The Pleiades, duh!. Rigel. Betelgeuse. Ford Prefect.
[Three arrows are pointing up above three lines labelled “expanding shell of radio transmissions”.] Edge of federation sector 0-0-1.
Pollux. Arcturus. Missing WMDs. Sirius. Barnard's Star. Alpha Centauri.
One parsec:
One light year: Oort Cloud (?). Bupkis. Comet which will destroy Earth in late 2063. Pioneer 10. Voyager I. Eris (All hail Discordia!). Pluto. (Not a planet. Neener neener.) Neptune. Uranus. Saturn. [Two arrows labelled “life” point to two moons, one next to Saturn and the other Jupiter.] Jupiter. Asteroids. Mars. Venus. Sun. Mercury. Spaceship Planet Express: Hey, a heaping bowl of salt! Spaceship Discovery One: Open the fridge door, Hal. Moon. Human altitude record (Apollo 13). 2nd place: Snoop Dogg. Space elevator - One of these days, promise! Geosynchronous Orbit. GPS satellites. Lunar lander: In retrospect, they shouldn't have sent a poet. I have no idea how to land. International Space Station. Space junk.
Official edge of space (100 km): Meteors.
1/10 ATM: High altitude balloons. Airliners. Shuttle Columbia lost.
1/2 ATM: Cory Doctrow [In an hot air balloon]. Everest. Helicopters (6000 m). Cueball: Woo Python!
[A vertical scale is drawn along the right side of the picture, starting at 1 km and getting progressively smaller and smaller.]
1 km. 800 m: Burj Dubai (~800 m). 500. 400. Eiffel Tower (325 m). 200. Kites. Great Pyramid (140 m). Pop fly. Redwood (115 m).
100m. Oak (20 m). A person in the oak: Hey squirrels! Tallest stilts. Brachiosaur (13 m). Giraffe (8 m).
[Megan and Cueball holding the kite are labeled:] Folks.
Title: The observable universe, from top to bottom: on a log scale.
Caption: Sizes are not to scale, but heights above the Earth's surface are accurate on a log scale. (That is, each step up is double the height.)