One man decided to apply an algorithm to national travel and ended up optimizing the absolutely PERFECT cross-country road trip. The man was Randy Olsen, and he was joined by Tracy Staedter from Discovery News while plotting this wonderful map.
Mission San Antonio de Valero or The Alamo, San Antonio Missions National Historical Park or Mission Trail, San Antonio, Texas. Established in this church was the site of the Battle of the Alamo in and is now a museum.
Craters of the Moon National Monument and Preserve, Idaho: - CA-WY trip! "Roughly the size of Rhode Island, the miles of black lava and the remote location gives Craters a wonderful night sky that attracts amateur astronomers to view the heavens.