Natural? Well I find the entire Hill Country Region very interesting. You must visit Fredericksburg while you're in that area. Also, Big Bend National Park is a beautiful place to visit. There are Indian pictographs in Paint Rock, Texas, that is on Hwy 83 somewhere. Honestly, I could go on and on forever, but I figured since you said "natural" you were more interested in land and things of that nature, so that should give you a start.
Some tourist places in Texas are Houston Zoo, Zuma Fun Center, Natural Bridge Cavern, and more.
There are some interesting places in "Washington" state but sorry not Wahington sate.
some intresing places are corn palce
interesting places in west
hollywood
africa is a country
the beaches
Hollywood beaches
The Taj Mahal
The shops our amazing
Disneyworld!
Some of the most interesting places to visit in Argentina include Buenos Aires, known for its vibrant culture and tango dancing, Iguazu Falls, a breathtaking natural wonder on the border with Brazil, and the stunning landscapes of Patagonia, home to glaciers and mountains perfect for outdoor adventures.