An astounding collection of medical specimens, including bits of President Lincoln.

Crammed into a Baltimore row house is an oddities shop that sells everything from skulls to dead insects.

A museum dedicated to exhibiting remarkable outsider art.

It's not hard to see why the historic Peabody Conservatory of Music's library has been described as a "cathedral of books."

The trials and tribulations of marking Poe's grave.

The haunting "Hell House Altar" is one of the few remnants of an abandoned college that has been a magnet for local legends.

They sort through millions of dollars worth of diplomatic gifts on behalf of the government.

The oldest orange tree in California spawned a generation of citrus farmers.

The national park was once a plantation estate.

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

This lovely pocket park is one of the most under appreciated in D.C.

An overlooked oasis of quiet on the grounds of Washington's monumental basilica.

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

An easily overlooked memorial to a Ukrainian famine-genocide that killed over 4 million people.

An obscure federal monument honors the French diplomat who served as Ambassador to the U.S. during WWI.

The oldest continuously operating fish market in the United States.

This mysterious structure by the Washington Monument is a flood barrier designed to protect the White House against rising waters.

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

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

Decades before the scandal, this staircase on the river was a literal "water gate."

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

The most accurate timepiece in the world.

An unassuming, powerful monument north of the U.S. Capitol bears witness to the resilience of Japanese Americans during a time of grave injustice.

Daily lunch spot for many of Washington, D.C.'s cab drivers.