Grounds and visitor center:
Apr - Oct: daily 9 am - 5 pm
Nov - Mar: daily 9 am - 4:30 pm
Tours of the historic house:
9 am, 12:15 pm, 1:15 pm, 3 pm, 3:30 pm
(Apr - Oct: + 4 pm )
Free admission to the site.
Tours of the house are ticketed, make sure to arrive early enough to pick up your tickets. They can also be reserved in advance.
$1.50 charge for each reserved ticket
Wikipedia https://en.wikipedia.org/wiki/Frederick_Douglass_National_Historic_Site
Official website http://www.nps.gov/frdo/index.htm
좌표 38°51'48.109" N -76°59'6.671" E