▁de ▁R ivi ères - type ▁fort ▁cannot ▁be ▁visited . ▁The ▁walk ▁depart ing ▁from ▁L out raz ▁( 3 0 ▁min ) ▁is ▁worth while ▁as ▁one ▁can ▁see ▁the ▁ill umin ations ▁of ▁the ▁fort ▁at ▁night . ▁The ▁monument al ▁entrance ▁of ▁the ▁Fr é jus ▁Rail ▁T unnel ▁was ▁built ▁during ▁the ▁first ▁break through ▁of ▁the ▁Al ps ▁between ▁ 1 8 5 7 ▁and ▁ 1 8 7 1 . ▁This ▁former ▁entrance ▁of ▁the ▁Fr é jus ▁rail ▁tunnel ▁is ▁situated ▁on ▁the ▁road ▁linking ▁Mod ane ▁to ▁Val fr é jus . ▁The ▁Saint - Jac ques ▁Chap el : ▁A ▁unique ▁bar o que ▁building ▁of ▁the ▁town , ▁this ▁small ▁Roman es que ▁chap el , ▁in ▁its ▁construction , ▁has ▁been ▁completely ▁restored . ▁Vis its ▁are ▁on ▁request ▁from ▁the ▁association ▁for ▁the ▁rest oration ▁of ▁the ▁chap el . ▁The ▁parish ▁church : ▁A ▁testim ony ▁of ▁reconst ruction , ▁it ▁is ▁due ▁to ▁the ▁architect ▁and ▁also ▁author ▁of ▁the ▁best - known ▁church ▁of ▁the ▁Pl ate au ▁d ' Ass y . ▁Only ▁the ▁bell ▁tower ▁of ▁this ▁building ▁pre - dates ▁World ▁War ▁II , ▁the ▁rest ▁having ▁been ▁destroyed ▁during ▁bomb ings . ▁The ▁Fort ▁of ▁Saint - G ob ain : ▁A ▁structure ▁of ▁the ▁Mag in ot ▁Line ▁built ▁in ▁ 1 9 3 3 ▁to ▁protect ▁the ▁national ▁road ▁and ▁railway . ▁Mod ane ▁intern ment ▁camp : ▁ 5 3