CREATE TABLE roller_coaster (Country_ID VARCHAR(255), Height VARCHAR(255)); CREATE TABLE country (Name VARCHAR(255), population VARCHAR(255), Country_ID VARCHAR(255))
Show the name and population of the country that has the highest roller coaster.
    
SQL: SELECT T1.Name, T1.population FROM country AS T1 JOIN roller_coaster AS T2 ON T1.Country_ID = T2.Country_ID ORDER BY T2.Height DESC LIMIT 1