If you are fan of movies like Indiana Jones and National Treasure, I think you will like the antiquities system released with The Elder Scrolls Online Antiquity System.
Here is a collection of my favourite links on Antiquities.
To get you started, there has been a basic guide [EN] [FR] [DE][PY]posted on the official website.
Also, you will find awesome content created by the #ESOFam community.
Video Guide
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Add-on
Display Leads with Location Info
https://www.esoui.com/downloads/info2651-DisplayLeads-withLocationInfo.html
Web Resources
Ninja614 / Inklings Gaming