奇怪しい[okashii] funny
怪奇[kaiki] bizarre
奇しくも[kushikumo] strangely
奇異[kii] odd
奇っ怪[kikkai] strange

奇矯[kikyou] eccentric
奇遇[kiguu] unexpected meeting
奇形[kikei] birth defect
奇策[kisaku] clever scheme
奇習[kishuu] strange custom

遺蹟[iseki] historic ruins (remains, relics)
筆蹟[fudeato] handwriting
偉蹟[iseki] remaining works
奇蹟[kiseki] miracle
史蹟[shiseki] historical landmark

真蹟[shinseki] true autograph
事蹟[jiseki] evidence
古蹟[furuato] historic spot
城蹟[joushi] castle site
手蹟[shuseki] holograph