7-Day Building Sketch Streak
Sketch one building or architectural detail you see each day for a week. Check in once a day.
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Arts · Facts & stats · iChallenge network
Daily facts and stats about architecture, plus real challenges to put them to work.
The three classical Greek orders of columns are Doric, Ionic and which other?
Corinthian columns have ornate capitals carved with acanthus leaves.

One ranked attempt per day. Practice as much as you like.
Join one, log your days or post your proof. Finishing earns XP and the Finisher badge.
Sketch one building or architectural detail you see each day for a week. Check in once a day.
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Measure and draw a floor plan of one room in your home to a simple scale. Post a photo link or write-up.
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Build an arch from folded paper or sugar cubes with a keystone at the top and test how much it holds. Post a write-up.
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Each day identify one architectural feature, like a column, arch or dome, around you or online. Check in daily.
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Live counts from ArchitectChallenge.com. All arena stats →
Earned on any arena, shown on your profile everywhere.
Add your email to keep your level, streak and badges if you switch devices, and carry them to every iChallenge arena. One email when you save; no spam.
Fund a prize on ArchitectChallenge.com and your brand sits on the challenge card, the leaderboard and every finisher's share. Prizes only appear once they're funded, so players can trust what they see.
Play today's quiz round, post your score, and start a streak.
XP, levels, streaks and badges. Save your progress with an email and it follows you to every arena on the iChallenge network.
Everyone on this arena gets the same five questions each day, from easy to hard. You get one ranked attempt; practice rounds are unlimited.
100 points per correct answer, up to 50 more for answering quickly, a combo multiplier for answers in a row, and 150 bonus points for a perfect round.
Yes. Playing, streaks, badges and leaderboards are free. Some challenges carry a sponsor-funded prize; the challenge card shows it when one is funded.