You are a true adventuring aficionado, experienced in raiding ruins, temples, and tombs, and unlike dungeons, these are regularly more complex. This experienced focus gives you the following benefits:
Increase you Wisdom or Intelligence score by 1, to a maximum of 20.
You have advantage on Intelligence (History, Religion and Arcana) checks made with regard to significant sites and structures of notoriety.
You have advantage on Intelligence (Investigation) checks on traps and puzzles, which may give you clues to solving them or reveal their nature.
When you succeed on a Dexterity saving throw to avoid a danger, you can use your reaction to interact with an object around you as detailed in PHB pg.190.
You never get lost in a temple or tomb with a highly regimented architecture. You have advantage against getting lost in a ruin of a city, or in temples or tombs that are not regimented.
You have advantage on saving throws made to avoid or resist traps, or their effects.
You can stealth while searching for traps at the same time at a normal pace, as long as you are within a structure.