Echoes In Our Minds, by Cristinuke & Nonymos

Steve Rogers is struck by a persistent headache as the dawn rises over DC. 

So are—simultaneously—Natasha Romanov in the Muscovite night, James Barnes in the dull grey of a Berlin afternoon, Tony Stark stumbling out of his Afghan cave, Bruce Banner in the crushing heat of the Nevada desert, Clint Barton squinting up at the Vegas lights, Loki Laufeyson under the Scandinavian sun, and Prince T’Challa amidst the West African rainforest. 

Surely it’s nothing but an odd coincidence.

Adult, Sense8!AU. This fic is an amazing trip – all the characters and how they work in this context are completely and utterly compelling. Many pairings, as befits the subject, but mainly Steve/Bucky.