We caught the first tour on the Titan Missile II. This is a one-of-a kind museum giving visitors a rare look at the technology used by the United States to deter nuclear war. 
It was once one of America's most top secret places and now it is a National Historic Landmark bringing Cold War history to life for millions of visitors from around the world. There were 54 Titan II missile sites on alert across the United States from 1963 to 1987 and this preserved Titan II missile site is the only one that remains.
This underground silo was able to launch in just 58 seconds, and was capable of delivering a 9-megaton nuclear warhead to targets more than 6300 miles (10,000 km) away in about 30 minutes. It was a very interesting tour - and creepy!
After lunch we went to the Arizona-Sonora Desert Museum.
This attraction too, has a four-star rating! This 98 acre desert museum is a zoo, a botanical garden, an art gallery, a natural history museum, and an aquarium all rolled into one!
There are two miles of walking paths through various desert habitats, over 230 different animal species, 1,200 types of plants and it has one of the world's most extensive regional mineral collections.
The highlight of the day was the Raptors Free Flight (birds that eat live prey). This demonstration featured three different raptor species; the Barn Owl, Red-tailed Hawks and the family group of Harris Hawks, and focused the attention on how the birds behave in nature.
An interesting demonstration - - birds were swooping over the crowds of people and diving to the ground to catch their prey for dinner.
