More like Peculiar Lives

anchored on:science fictioncontemporarytime traveladventurousmysterious

but

Narrow

Time Travelers Never DieSeries
series2 books1996
Set in our world.
Start with Time Travelers Never Die →
The Door Into SummerNovel
Robert A. Heinleinstandalone novel1957
About revenge and robots, set in north america and near future.
The Stonehenge GateNovel
Jack Williamsonstandalone novel2005
Adventure, about expeditions and space exploration, set in africa.
“Stumbling on ancient stones in the Sahara Desert, four adventurous excavators and poker buddies realize that they have discovered a gateway to other worlds, from technologically advanced planets to primitive civilizations.”
from the catalogue
The Accidental Time MachineNovel
Joe Haldemanstandalone novel2007
Set in our world and north america.
Quest for the FutureNovel
A. E. van Vogtstandalone novel1970
Set in our world.
Thrice Upon a TimeNovel
James P. Hoganstandalone novel1980
Hard science fiction, about identity, set in british isles.
“Amazon: When Murdoch was summoned to his grandfather's isolated Scottish castle, he had no idea of the old man's latest discovery -- nor where it would lead him.”
from the catalogue