San Francisco is a favourite city for so many: Americans, Tourists and Homeless. The climate is just perfect for almost anything including growing wine (Napa valley) or computer (Silicon Valley). Tourist will enjoy the local cable train, Alcatraz prison and The Golden Gate bridge.
The Grand Canyon is really grand. When standing on the ridge of the canyon and looking 1 mile (1600m) down to the river Colorado that created all this, you do owe the river a lot of respect. It is possible to walk all the way down and back up in a day, what can be recommended.
Grand Teton National Park is a great park not far from Yellowstone with similar wildlife, but without the geothermical experience.
The Yellowstone is the oldest National Park in the USA and hosts a wide variety of animal life (incl. bears and buffalo) and vegetation. The natural beauty will make quite an impression. Beneath the Yellowstone there is volcanic activity that causes many hot pools and geysers ("Old Faithful").
Arches National Park (near Moab) is an area with many rock-formations with some in the shape of an arch (curved with hollow space). Quite pictoresques. Arches N.P. is close to the village of Moab, a starting point for different adventures...
Bryce Canyon National Park is a national park located in southwestern Utah. The major feature of the park is Bryce Canyon, which is a collection of giant natural amphitheaters.
Las Vegas is the show and gambling capital of the USA and the Western world. The city is featured in many, many movies and TV series. Las Vegas is a desert city with water coming from Lake Mead.
The Las Vegas strip is the best known with casinos, fancy hotels and top-class resorts. You can also find the Eiffel Tower, Little Venice, a Pyramid and Lady Liberty here. Of course you can get married here with Elvis Presley as your witness.
Monument Valley is a desert with few small, steep rock formations in the shape of monuments. The area is a "classic" and a must-do in the Western USA. Of course it is featured in many movies...