Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE roller_coaster (Park VARCHAR, Speed VARCHAR)

### Question ###
Show the park of the roller coaster with the highest speed.

### Accurate SQL ###

SELECT Park FROM roller_coaster ORDER BY Speed DESC LIMIT 1