Track day length to estimate latitude.
January 25 - April 5
Time Clues Investigate Universal Time to estimate longitude.
Continent, Country, City Clues Research facts to pinpoint locations.
March 15 - April 5
Revealed Mystery Class locations and challenge results
* Please note: Due to budget limitations, our spring 2019 Mystery Class challenge will be a replay of a previous year's challenge. We will reveal the locations of the 10 Mystery sites on April 12th but will not be able to hold a year-end contest.