the winning artwork will be on display at the national underground railroad freedom center in cincinnationth of july. the contest deadline is may 20th, so get those entries in. good luck! >> a dutch firm and a software company are creating a robot that can build bridges. using technology similar to what printers use, the robot shoots out cords of molten steel in intricate patterns. once the steel hardens, the robot moves forward and shoots out more molten metal. it's like a train building its own tracks. the first test will be over an amsterdam canal in 2017. >> coming up, we go to the circus, and i get to meet an elephant. >> who doesn't love the circus? alexa visited one that bills itself as having a lot of "soul." >> when you go to the circus, you expect to see acrobats, wild animals, andnd other incredible acts from faraway countries. as zeke explained to me, the universoul circus certainly has all that. >> we bring different people from china. we bring them from africa. we bring them from brazil. we bring them from france. jean claude -- he's out of france. we go to africa. we go al

the winning artwork will be on display at the national underground railroad freedom center in cincinnati month of july. the contest deadline is may 20th, so get those entries in. good luck! >> a dutch firm and a software company are creating a robot that can build bridges. using technology similar to what printers use, the robot shoots out cords of molten steel in intricate patterns. once the steel hardens, the robot moves forward and shoots out more molten metal. it's like a train building its own tracks. the first test will be over an >> coming up, we go to the circus, and i get to meet an elephant.