The nation's capital isn't just home to politicians, museums, and memorials. Washington D.C. also houses the highest concentration of old homes in the country.
According to Zillow, D.C. is the only area in the U.S. where the most represented decade for home construction is the 1920s -- the oldest in the country.
To determine how old homes are in each state, Zillow took a look at the current housing stock state-by-state and analyzed the construction dates of each residence, as long as it fell between 1900 and 2014.
The 2000s proved to be the most represented decade, with 20 states -- including Florida, Colorado, and Iowa -- favoring construction from that time period.
Homes built in the1950s also proved popular, as the majority of residences across 12 states -- including California, Ohio, and New York -- all originated in the time period.
Several decades didn't make the list at all, meaning homes made in the 1900s, 1910s, 1930s, 1940s and 1960s are less common than those hailing from other decades.
Take a look at Zillow's infographic below to see how old the homes are in your state.