Tiny memorials honor individual victims of the Holocaust.

The most visited, and possibly most controversial, museum in Germany.

A former major munitions plant that has been converted into a sprawling art space.

One critic described it as "middle Mussolini, early Ramses, and late Neiman-Marcus." Another called it an architectural "natural disaster."

D.C.'s first central library was born out of a chance encounter with the philanthropist whose name it bears.

The beloved statue at the National Academy of Sciences is oh so inviting to sit on.

Rumor has it the uncarved lump behind the three famous suffragists is reserved for the first woman president.

During the Industrial Revolution this “Temple of Invention” was full of intricate miniature machines and gadgets.

One of the dwarven trees dates back to 1625 and survived the Hiroshima bombing.

Thousands of coffin-like pillars make up this controversial Holocaust memorial.

The site of the famous Nazi book burning campaign of 1933 remembers its "Night of Shame".

A museum dedicated to the history of a terrifying secret police is now held in their former headquarters.

Museum dedicated to the terror regimes of Hungary.

Members of Congress have traveled between the buildings on Capitol Hill for a century hidden from tourists, press, and storm clouds.

Largest Roman Catholic church in North America.

This grand gothic brewery has been pumping out suds for over a hundred years.

The United States Capitol's former columns still stand.

A much-maligned monument to teetotalism.

This lonely waterfront memorial to the men of the Titanic was erected by the "Women of America."

The iconic D.C. restaurant where the Cuban Missile Crisis was negotiated, now a Walgreens.