I’ve not done one of these for ages, so I thought it was about time for another one. More retro-future eye-candy for your delight and delectation…
air
Tupolev Tu-104 “Camel”
Tupolev Tu-114 Poccия “Cleat”
Tupolev Tu-124 “Cookpot”
Bristol Britannia
sea
A saturation diver at work
An Atmospheric Diving Suit at work
A cutaway of Jacques Cousteau’s Conshelf 2 underwater habitat
DSV-2 Alvin on the ocean floor
land
Ford Gyron concept car
Holden Hurricane concept car
MAZ 7904 giant Soviet transporter truck
Arktos Craft amphibious all-terrain transport
space
Three Apollo astronauts in their CM (ASTP, I think)
Alexei Leonov on his space walk (Voskhod 2)
A 1984 Mars mission concept
A Mars lander concept
It Doesn't Have To Be Right... 
2015-05-24 at 00:23
That is ASTP… it looks like them even from the tops of their heads, but also their gloves have their names on.
2015-05-24 at 09:35
Ah, I didn’t spot that. Tho I wouldn’t have recognised Stafford as he looks different.
2015-05-25 at 13:31
Yes, he looks more like Robert Duvall from that angle!