What is this place about? Is it that they have dead animals or dead people?

There is an area with animal skeletons, but it's smaller. I'd say the focus is on humans with abnormal or gruesome deaths.

Dead people and artifacts from murderers and such

Although there are sections about dead animals and curiosities it wasn't as significant as the areas that covered human deaths. There are very visual pictures of deaths by murder, accidents, and suicide.

It goes into a little bit of everything with death. It gives deciptions about serial killers, autospy, pictures of crime scenes, cultural believes with death and such. It is a very well way of showing death in different ways.

It provides a realistic depiction of death, including body decomposition, autopsy, and raw footage of crime scenes (particularly murder) and gruesome accidents. There's also historical artifacts from serial killers. All the good stuff :)

They have a severed head. Fetal pigs and the such. The place is about death, executions, history behind it, cultures and their belief on death, etc.