This obelisk was built in 1914 for the 300th anniversary of the reign of Romanovs's house but in 1917, the inscriptions were removed and it was re-purposed for the memory of the revolutionaries.
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/8721758@N06">Jorge Láscar</a> from Melbourne, Australia
CC BY 2.0
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/jlascar/19969177451/">Obelisk to the revolutionaries</a>