Psychopathy.
A sadist.
tourist
epicurean
A voyuer is: a person who gets sexual pleasure from secretly watching other people have sex; a person who likes seeing and talking or writing about something that is considered to be private.
During a passionate intercourse, the place where a person takes his or her lover is called pleasure town. Pleasure town is also a name of a comedy movie.
a person who visits places for pleasure
People watching a sport are the spectators.
Couch potato-slang.
Assuming they were protected from other hazards such as asphyxiation, a person would freeze to death on Mars.
The term for a person who derives pleasure from hurting others is a sadist.
Tourist
A person who can't laugh is called an anhedonic. Anhedonia is the inability to experience pleasure, which can manifest in different ways, including an inability to laugh. It can be a symptom of various mental health conditions.