Can anyone recommend an awesome vacation for 1 person that comes to around $3K or $4K? The time frame would be approximately 7 to 14 days. It could be any time between two weeks from today and Aug 18.
Important detail: I’m 18 so that eliminates some options with minimum age requirements above 18.
I like tours but I’M OPEN TO ANY IDEA. The more the better 
More superfluous details if you care to read on:
Why do I ask? My family’s Celebrity Cruises Scandinavia vacation was canceled because of a medical emergency that came up, and I can’t go on my own (I wanted to) because celebrity requires somebody in the cabin to be above 21.
My ideas so far:
All inclusive 11 day Trans-Siberian railway tour starting in Moscow, stopping in Mongolia, ending in Beijing.
14 day Russia, Warsaw, and Baltic states tour
Moscow, Ekanterinburg, Kazan, St. Petersburg tour
11 day Tokyo, Beijing, and Shanghai tour
edit: Any idea EXCEPT Hawaii, the Caribbean, and Central America please
That REI link has great trips. Thanks!
Check out REI Adventures (http://www.rei.com/adventures). They have a bunch of really awesome trips around the globe that run about $2-4K.
You can also spend your time, energy and money on a good cause like Habitat for Humanity:
You could try Canoa, Ecuador. Only 800 dollars for a month and includes food and room. many amazon ecotours in the area and you could go to Galapagos Island.