A few weeks ago I wrote about an island on an island on a landmass. Today I found this website which shows an island on an island on an island. Pretty cool! Zoom out on the map below to see the nested islands.
There is a puddle…
…on an island…
…in a lake (Crater Lake)…
…on an island (Volcano Island)…
…in a lake (Taal Lake)…
…on an island (Luzon, Philipines)…
…in the ocean.
David Richeson: Division by Zero 
Interesting post.
I found this city in Argentina that has unusual symmetry–alternating diamonds, circles, and squares within a rounded square.
http://maps.google.com/maps?f=q&source=s_q&hl=en&geocode=&q=buenas+aires,+ar&sll=37.0625,-95.677068&sspn=33.984987,56.337891&ie=UTF8&ll=-34.92183,-57.950306&spn=0.068686,0.110035&t=h&z=13
Not exactly the same idea, but I thought it was pretty cool.
That’s beautiful. Thanks for sharing.