ORIGINAL AIRDATE: May 14th, 1994 ---
An old professor of MacGyver's drags him along on a hunt for legendary Atlantis.
MISSION: MacGyver's former professor is fighting an uphill battle proving the existence of Atlantis to the board of his university. MacGyver is enlisted to help track down the artifacts that will seal his case.
This week's highlights include:

Here's a link to that I Was There Too episode with Clancy Brown.

Odessa Catacombs (Archeology)

The Odessa Catacombs are a network of tunnels under Odessa, Ukraine and its surrounding region, that are mostly the result of stone mining, at first, and then smuggling. The Catacombs are on three levels and reach a depth of 60 metres below sea level.

Check out the article on wikipedia: https://en.wikipedia.org/wiki/Odessa_Catacombs.