If you liked the Rohan at the Louvre manga, the Anime-Planet community thinks you'd like:
Not every historical event or figure will make it into the history books. Often, influential people and fascinating events fall to the wayside, where they are quickly buried beneath the sands of time. Baseball legend Ty Cobb, renowned inventor Nicola Tesla, and Typhoid Mary - a woman responsible for spreading the lethal typhoid fever during her career as a cook - are just a few significant figures that are often forgotten entirely... until now.
Rohan at the Louvre and the Winchester Mystery House chapter in Lives of Eccentrics (though a couple others are also similar) feel practically identical. Both are bizarre, modern-feeling ghost stories set in labyrinthian structures (that actually exist), and have other ties to reality as well. The pacing, atmosphere, and art style are identical as well. If you enjoyed one, definitely look into the other.