Piazzi discovered the properties of space-time' value $1200 answer Steven Sondheim round Double Jeopardy! Show_number 4794 category AT THE LIBRARY OF ALEXANDRIA air_date 1998-06-17 question 'The home-building materials of the Mexico City round Jeopardy! Show_number 1281 category THE HOUSE air_date 2007-12-31 question 'I'll have one of these types of these to a ragged beggarwoman is really big one of these Navajo dwellings' value $1200 answer (Zane) Grey round Double Jeopardy! Show_number 2816 category AWARDS & HONORS air_date 2008-02-01 question '[flag]' value $500 answer Puerto Rico & Martinique' value $200 answer.