Levitated Mass by Michael Heizer
This&nbsp;340 ton granite megalith took 11 days to move 105 miles from quarry to site and&nbsp;resides at LACMA&nbsp;in California. Originally&nbsp;conceived&nbsp;in 1969 it was not until this summer that the project was finally complete as it took Heizer decades to find the perfect boulder to sit upon the 456 foot long concrete channel.

Artists: | Wiki | Website | [via: Co.Design]
