For our latest mission, we put a Carnegie Hall orchestra in the middle of New York City and placed an empty podium in front of the musicians with a sign that read, “Conduct Us.” Random New Yorkers who accepted the challenge were given the opportunity to conduct this world-class orchestra. The orchestra responded to the conductors, altering their tempo and performance accordingly. This project was a collaboration with Carnegie Hall and Ensemble ACJW.

A man carries a block of ice left behind by a hailstorm in Sao Paulo, Brazil, on May 19, 2014. After the severe overnight hailstorm a layer of hailstones as deep as 20 centimeters covered streets and parks, drawing people to make snowmen and play in the ice, an unusual scene to the city. (Photo by Nelson Antoine/AP Photo)

American artist Kurt Wenner creates unparalleled three-dimensional drawings on asphalt streets and of floor. Kurt – A former employee of NASA, which is the love of the art of the Renaissance left the space agency and left to raise the artistic skills in Rome. Has a variety of awards in the arts. Here is a selection of his works made in different cities around the world.

Iranian artist and designer Mehdi Ghadyanloo, with the help of the municipality, is slowly brightening up the city of Tehran one wall at a time. The 33-year old street artist has been painting murals and walls in Tehran for the last 5 years age, during which he’s reported to have painted over one hundred walls.

The Apple l, the first Apple computer made by Steve Jobs and Steve Wozniak in 1976, is seen on display at Sotheby's on June 8, 2012 in New York City. Sotheby's called the computer “an exceptionally rare, working example with original Apple cassette interface, operation manuals and a rare BASIC Users' Manual”. (Photo by Andrew Burton/AFP)

Customers try out the the new iPad2 shortly after it went on sale at the Fifth Avenue Apple store March 11, 2011 in New York City. The iPad 2 became available at 4:00 a.m. Eastern time for online purchase and at 5:00 p.m. today in over 10,000 retail locations.

A craftsman makes imitation bread samples at The Sample Factory on February 25, 2008 in Gujo, Gifu, Japan. Gujo City has more than a 50 percent share of the imitation vinyl chloride samples industry. Replica foods are used in most restaurant window displays in Japan, and are popular as souvenirs for tourists. (Photo by Koichi Kamoshida/Getty Images)

People walk past the 23-foot “Unitled (LAMP/BEAR)” outdoor sculpture of a teddy bear by artist Urs Fischer April 8, 2011 in New York City. The 35,000 pound sculpture of a yellow teddy bear with a working lamp will be on display for five months in front of the Seagram Building in Manhattan. The sculpture is expected to sell for more than $10 million at Christie’s Post-War & Contemporary Evening Sale on May 11. (Photo by Mario Tama/Getty Images)