Held this year with the overarching theme of time and the changes it brings, the Museum Night offers a wide variety of fun - provided you can separate the wheat from the chaff.
The full event list includes a Spanish movie evening at the Riga Bourse, a dance performance at the P. Stradiņš Museum of History of Medicine, as well as a DJ set on the NOASS floating gallery.
As a rule of thumb, most museums display their regular exhibitions supplemented by a related performance, visuals, workshops and more.
You can sneak in for free to see exhibitions we've covered in the past - like the hyperrealism exhibition at the Latvian National Art Museum; the Danse Macabre at the Museum for History of Medicine, etc.
If you're unsure over where to go, follow your nose the crowds and memories of the museums you've enjoyed visiting in the past.
Museums usually open at 7 p.m. and close at around midnight, though the more heroic ones really do pull all-nighters.
There'll be additional Riga Transport buses to ship museum goers home, while the Passenger Rail company offers a 50% discount to all railroad tickets.