The Moscow metro is one of the busiest in the world, with millions of commuters passing through it every day. But it's also one of the most impressive transport systems — every metro station has its own character and style.
Unsurprisingly, these "palaces of the people" are a huge hit on Instagram. We asked you to share your best photos of the underground and made a selection of the best ones.
Want to participate? This week's theme is "Soviet architecture." Take your best pic and submit it on Instagram by tagging us @themoscowtimes or using the #themoscowtimes hashtag.