A prohibition era watering hole for the police.

Try not to get slimed in Tribeca.

The bank that helped fund the Mexican-American War and the purchase of Alaska met its downfall after helping Augusto Pinochet launder money.

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

The U.S. Navy’s preposterously detailed mini battleship took 77,000 hours to complete.

A museum cafe showcases Native American dishes and indigenous ingredients from across the Western Hemisphere.

This seemingly out-of-place gas station by the Watergate hotel was once described as the most expensive gas station in the world.

The little-known, 300-year history of the area includes former lives as a bustling tobacco port, parking lot, and industrial dump.

Washington's iconic carousel has a nice piece of Civil Rights history.

Those with a sharp eye can find the hidden image of a German Shepherd on the memorial's Mural Wall.

Legend has it that President Grant’s frequent drinking in the lobby gave rise to the term “lobbyist.”

The unique traffic pattern named for an influential urban planner is also known as the Pedestrian Scramble.

A little marble compass above George Washington's (empty) tomb in the Capitol marks where D.C.'s four quadrants intersect.

The only Civil War battle in Washington D.C. took place near this highest natural point in the city.

The most accurate timepiece in the world.

A celebrity from the late Cretaceous period.

Light bulbs, scrap wood, and tinfoil comprise this homemade throne of the gods.

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

The oldest continuously operating fish market in the United States.

The national park was once a plantation estate.

Largest Roman Catholic church in North America.

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

The first purpose-built art gallery in the United States is once again open as a center of craft arts.

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