Long-abandoned trolley tunnels just a mile away from the White House are turning into an art space.

A diminutive memorial marks the site of a successful assassination by a right-wing death squad in America's capital.

This unacceptably tall building was the real reason for Washington, D.C.'s skyscraper ban.

This restaurant has been a haven for D.C.'s LGBTQ community since the 1950s.

This fertility idol of questionable authenticity inspired an iconic Indiana Jones artifact.

The Byzantine, pre-Columbian, and medieval art at this stately mansion are some of the most under-appreciated collections in D.C.

Obscure Freemasons still live in D.C.’s largest private residence.

The United States Capitol's former columns still stand.

This imposing Masonic temple a mile from the White House was the first public library in Washington, D.C.

A public art jibe at one of the United States’ oldest and longest-serving senators.

The span is crooked and made from two older recycled bridges.

A hidden passageway now marks the site of an assassination attempt on Ronald Reagan that some say broke a 140-year-old curse.

Through the decades, Black music stars have performed at this historic hub for music and the arts.

This apartment building designed by a notable Washington D.C. architect housed the Qing Dynasty's Legation.

The oldest house in Washington, D.C. wasn't originally constructed in the nation's capital.

The former home of Lillian Evans Tibbs and her grandson, Thurlow Evans Tibbs Jr., whose prodigious contributions to music and art spanned more than 90 years.

The former home of the woman who successfully fought to integrate restaurants in Washington, D.C.

This former Cold War missile control site played an important role in the creation of GPS.

Art deco landmark on the outskirts of Washington, D.C.

The first memorial dedicated solely to the Black troops who fought for the Union.

A gorgeous mural outside a beloved D.C. restaurant pays homage to famous Black Americans.

When it comes to handsignals (and colonialism) rock always beats scissors.

The most accurate timepiece in the world.

A hoard of sky catalogs, astrophysical journals, even the works of Galileo and Copernicus.