A marble map of ancient Rome, that hasn't been put on public view for almost 100 years, is getting its very own museum within sight of the Colosseum.

AP Photo/Alessandra Tarantino A view of ancient roman ruins and mosaics discovered during work on a new underground line in Rome, Italy, May 16, 2016. EPA/PAOLA MENTUCCIA ...

ROME — A marble map of ancient Rome, that hasn't been put on public view for almost 100 years, is getting its very own museum within sight of the Colosseum. The Museum of the Forma Urbis ...