This photo has been shared with the following captions:

• A young woman poses with a pile of bodies from the 2010 Moscow Metro bombings
• A normal day in a train
• WTF Russia
• Unexplainable Photos

The claims are false. This photo was taken on a set of a Russian movie Metro (2013).

Here is another photo taken on the same movie set:

Source: RU_METRO at LiveJournal. There are lot of photos taken on the set of the movie.

You can also watch the movie on YouTube (starts at 52m).