aqicn.org/city/beijing is a website with an interactive map showing air quality in different cities around the world.

musiclab.chromeexperiments.com/kandinsky-service/?ln=nl_BE - here you can create a musical instrument from your own doodles and listen to how it sounds.

musiclab.chromeexperiments.com/Harmonics - here you can play the virtual harp.

jacksonpollock.org - here you can draw in a font that leaves blots.

First-ever.ru is a site about the world's first chocolate bar, first phone, first advertising and everything first.

corrupt-a-file.net - a site where you can intentionally corrupt files.

lite.al/i2osQ is a site that can turn a black and white photo into a color one.

zenrus.ru - this site offers to meditate to exchange rates and relaxing music.

battles.nodegoat.net/viewer.p/23/385/scenario/1/geo/fullscreen is a map of all the battles in human history.

themarsvoyage.interzonas.info is a site with interpretations of images of Mars created by the hirise camera.

topdocumentaryfilms.com - you can watch the best documentaries here.

a816-dohbesp.nyc.gov/IndicatorPublic/dognames - site that shows the popularity count of dog nicknames in New York City.

ilovepdf.com - here you can find all the tools you need to work with .pdf files.

hands.wtf is a site with a set of three-dimensional hands and sounds responding to letters on the keyboard.

stripcreator.com/make.php is a site where you can easily draw a comic strip.

zyro.com/en/instrumenty/generator-nazvaniya-firmy - the site selects names for the company based on the words entered.

t.me/+6DP9btXwSiQwZmVi is a quite curious and entertaining channel for girls rather than...hmm.

doseofted.com/project/aesthetic/app.htm is a site where you can customize its aesthetics.

youtube.com/leanback - here you can watch YouTube in TV mode.

revfad.com/flip.html is a site writing text in reverse.revfad.com/flip.html is a site writing text in reverse.

escapemotions.com/community/experiments/flame/index.php is a site where you can draw symmetrical luminous ornaments.