This is completely local but it's been a personal bucket list pseudo-travel item since it opened in 2017.
Saturday night my wife and I spent a night in the
TWA Hotel in JFK to celebrate our 25th anniversary this week. As background, this hotel uses the TWA flight terminal, built in 1962 and designed by Eero Saarinen, for it's lobby and most public spaces. It's a fantastic space and we had a great time. I'll post a few pictures and you can go visit a larger gallery
at this link if you like.
This is the only hotel on the JFK airport property. It is most convenient via walkway to Terminal 5, the primary JetBlue terminal, but I think the JFK Air Train monorail can get you to the hotel from any terminal. We saw a significant number of airline personnel there. It is not particularly close to anything else besides the airport, and so is not a great place for an extended visit. Also the rooms have limited amenities: no coffee machine, no closet(!) (just a few pegs on the wall with a single hanger), no drawer space. But it would I think be a great place to spend one night at the beginning or end of a trip, and they also offer non-overnight rates for travelers with extended layovers. We ate both dinner and breakfast at The Paris Cafe, the only restaurant in-hotel, though they also have a food court for cheaper and quicker options. There also is a rooftop pool from which you can watch planes take off and land. The interior of the plane outside the window in the first image below has been converted into a lounge. They play a selection of 1960s music in the public spaces, which my wife noticed included very little rock and roll and no British invasion at all. It was more Sinatra, Dean Martin, Shirley Bassey, and some soul/Motown. They definitely create a mood.
There are displays of pilot and flight attendant uniforms, travel posters, recreations of the offices of Howard Hughes and Saarinen, and more fanciful recreations of 1960's living rooms. You check in at the same place people checked in to travel, and they still have the baggage intake carousel behind those stations, though it no longer functions. I did fly out of here at least once, I think for my Europe trip after finishing law school and the bar exam in 1987. Oddly enough, when the building opened in 1962 it was immediately out of date because it had not been designed for jets, so it had to be retrofitted. The terminal closed around 2001-02 when TWA was acquired by American. The new Terminal 5 was built and opened a few years later.