"We Seceded Where Others Failed."

This dig site outside D.C. is known for its exceptionally high density of baby dinosaur fossils and dinosaur eggs.

This university transit system is a 1970's vision of the future.

A collection of oddities including Dr. Kevorkian's suicide device, the Thanatron.

This symbolic piece of New Orleans architecture is also home to a few ghastly stories.

The curiosities and wonders of pharmacy in a delightful historic building.

A museum and shop on Bourbon Street located in the former home of the second Voodoo Queen of New Orleans.

A 19th-century shrine covered with prosthetic body parts as votive offerings.

This New Orleans statue of a portly figure in a goofy hat pays homage to a classic of satirical literature.

A hidden passageway now marks the site of an assassination attempt on Ronald Reagan that some say broke a 140-year-old curse.

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

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

The walls of the iconic dome are hollow and have a secret stairway.

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

A local prank turned town icon.

Penn State's giant bug collection.

These remote Florida islands have a history of sea turtles and sunken treasures, and one of the world's largest coastal brick fortresses.

The former home of the Nobel Prize-winning American writer is now home to dozens of six-toed cats.

The museum chronicling a treasure hunter's dream, fulfilled.

Florida's oldest bar was once a morgue, complete with a hanging tree and gravestones.

A monument celebrating the idea of reaching inaccessible places.

Electrical pylon in the shape of Disney's beloved mouse.

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

Fittingly, America's museum of architecture is itself a magnificently designed old building.