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

The oldest continuously operating fish market in the United States.

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

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

The sci-fi villain is a little-known inhabitant of the U.S. capital's largest cathedral.

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.

Formerly known as National D-Day Museum, this collection commemorates the battles of Normandy and WWII.

This colorful New Orleans bookstore features rare and used titles, with a specialty in Cajun fare.

This iconic Parisian bookstore doubles as the "Tumbleweed Hotel" for traveling writers.

This museum houses an imposing skeleton army comprised of creatures great and small.

This Parisian café sticks almost exclusively to an ethos of reuse.

Paris' fabled purveyor of exotic taxidermy and natural history curios.

A haunting exhibit in a wildlife refuge center highlights threatened species and the conservation efforts needed to save them.

This stunning blue and gold room changed cities twice before becoming part of the Smithsonian.

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

A tiny piece of the Moon is embedded in this stained glass masterpiece.

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

The United States Capitol's former columns still stand.