San Antonio is a major city in south-central Texas and is rich in history. Take a trip down memory lane by visiting the Missions National Historical Park or the Alamo. Explore the caves of the Natural Bridge Caverns or take a walk on the wild side when you visit the Natural Bridge Wildlife Ranch. Thrill seekers can get their heart racing when they visit the Extreme Escape Colonnade as they race against the time to solve riddles and puzzles in order to escape a themed room. Whatever option you choose, San Antonio is certainly one of the top USA cities to travel to.