This study reports on the implementation and evaluation of the "Enlighten Roman Tombs with Periscope" activity, one of the STEM + activities in the project named "STEM-ANTIQUE." The project included a science camp with STEM-based scientific studies, field trips, and observations lasting 10 days and 80 hours. The activity that was examined in the current research lasted 4 hours in total, of which 1 hour was theoretical, 1 hour was practice, and 2 hours were the fieldwork activities. The participants of the project were 22 students studying in the 9th grade of the public schools in Karaman, Turkey. As part of the "Enlighten Roman Tombs with Periscope" activity, the participating students explored an artificial tomb that was unearthed through the excavations. In focus group interviews with the students at the end of the study, the participants expressed their opinion that their innovation abilities and problem-solving skills improved.