The act of trespassing on condemned or otherwise dangerous buildings or areas. Urban explorers don't usually have a malicious motive as they are only trying to explore the unknown.
Most urban exploration is recorded on video, but only exciting or dangerous encounters are
uploaded to YouTube. Many examples of urban exploration gone wrong can be found on YouTube. These types of videos are often showcased by channels that review these videos. Good examples of these showcasing channels are Chills, Nuke's Top 5, Slapped Ham, etc.
Urban exploring is illegal and
potentially dangerous. Before trekking out, research the area you wish to explore. Beware of the dangers such as homeless people,
environmental hazards, supernatural entities, mysterious creatures, cults/crazy people, etc. Be sure to bring water, warm clothes, flashlights and batteries, a camera, a self-defense weapon, and most importantly, several friends. NEVER GO ANYWHERE ALONE. Make sure you don't go so far that you can't remember the way back. If you hear a strange noise, don't investigate it. If you hear a demonic scream, follow your instincts and run. If something starts chasing you, run. If you see something running from you, don't follow it. If something feels off, then leave. Follow your gut, and don't try anything stupid.