New York City streets were covered in horse poop in the late 1800s. With thousands of horses pulling on the streets every day, the city struggled to manage the massive amounts of waste. The stench and unsanitary conditions were unbearable. The poop also attracted flies and rats creating further health hazards. Now they tried to impose regulations to control the problem, but it wasn't really fixed until the automobile started replacing horses.

Uploaded to YouTube by Iahz, this vintage VHS home video film from 1996 shows all around the popular tourist destinations of Manhattan at that time.

So you plan on visiting some of these museum mansions, do you? […] before you run out that door, make it a point to visit each venue’s website for more information on how or when you can visit.