Smithsoian National Zoological Park

Always free of charge and open 364 days a year, the Smithsonian’s National Zoo is one of Washington D.C.’s, and the Smithsonian’s, most popular tourist destinations, with more than 2 million visitors from all over the world each year.

“The zoo has Asian Small Claw Otters and North American River Otters. Oh and most importantly the admission is free.”