The Reptile House is a 40 ft. tall, Turkish style building that was built in 1875, and is the oldest existing zoo building in America. The building was originally the Monkey House from its opening until renovation in 1951 in which it has since contained many reptiles. Guests may view the animals as they encircle around the building. In winter 2012, the zoo will temporarily close the Reptile House for a major renovation of exhibits, roofing, and air vents. It will open again in the spring of 2013. In May 2012, the zoo opened an outdoor yard for the endangered Galápagos tortoise. At certain times of the day, guests can walk-in the habitat and interact with the tortoises. In March 2013, the Reptile House reopened after a two month renovation. New carpet was laid down, ventilation was improved to prevent it from getting too hot in the summer, flags were hung up, and the ceiling was completely redone.