A beloved, quirky little fountain featuring a large frog spitting water at a naked boy.

Celebrate the history of the rich and truly misunderstood relationship between man and pigeon.

An outsider art studio that created a piece of work so popular they had to turn mainstream.

An extravagant western hotel where every floor is the "ground floor."

This haunted hotel built on natural springs once served as a hospital for a quack doctor promising a cure for cancer.

The longest escalator in the Western Hemisphere takes over three minutes to ride down.

FDR's Art Deco hospital tower was hopelessly inefficient.

Once home to seven different roller coasters, Glen Echo has undergone many transformations since its founding in 1891.

These unusual rooms on wheels are holdovers from the 1960s.

At Washington's Dulles Airport is a satellite museum (no pun intended) with three quarters of a million square feet of aircraft history.

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

This rare triple-jurisdiction drawbridge passes through Virginia, Maryland, and Washington, D.C.

The rooster who crossed the road lives on forever in Takoma Park, Maryland.

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

Largest Roman Catholic church in North America.

The United States Capitol's former columns still stand.

This poor little statue is the most vandalized memorial in Washington.

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

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

The sculptor was instructed to add “stallion attributes” to the general's bronze mare.

The oldest building in the District of Columbia was preserved because of a mistaken connection to George Washington.

The site of the climactic scene from the classic horror film is now a historic landmark.

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

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