By Lyndsey Matthews
March 25, 2011

This tunnel of books, created by an artist who used mirrors to give the illusion of infinity, can be found in a library somewhere in Europe. Can you guess who the artist is and where this is?

Hint: Science magazine previously featured this sculpture on its cover.

Log in and leave your guesses below and be sure to check back on Monday for the correct answer.

UPDATE 3/28/11: Looks like we finally stumped you guys. Slovak artist, Matej Krén, created this book sculpture, called Idiom, which can be found in the entrance of the Prague Municipal Library at Mariánské náměstí, near the Old Town Square. It's centrally located, near the Staromestska metro station, so you don't have to go out of your way to check this mind-boggling sculpture out. Though nobody guessed the location, T+L community member miguelcarvalho did guess the artist correctly. Check out more images of this sculpture here.

Lyndsey Matthews is an online editorial assistant at Travel + Leisure.