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

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

A wondrous old library overlooking the nation's capital.

This grand gothic brewery has been pumping out suds for over a hundred years.

The United States Capitol's former columns still stand.

A gaudy painted elephant stands in memory of south Florida's fallen carnies.

The behemoth beasts engaged in an epic battle is the second-tallest statue in the contiguous United States.

Neglected resting place of some of the city's early luminaries—and a woman encased in concrete.

A four-hour holy-rolling, Hallelujah-shouting, Southern gospel service, rendered as a country market where "All Is Welcome, Jews, and Gentiles."

One person's lost luggage is another person's treasure.

One man has carved a number of natural New Mexico caves into psychedelic sandstone temples.

This sandwich shop has a century-old elevator behind a sheet of plexiglass.

Senators used to relax in the nearly forgotten marble tubs now hidden in the U.S. Capitol Building's basement.

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

A heroic pigeon that, through a barrage of gunfire, delivered a message that saved over 100 lives in World War I.

Filled with goldfish swimming in a shallow pool of sea water, this ancient crypt is more wishing well than burial site.

A cemetery and the town it served sinks beneath the sea during the volcanic birth of Mt. Vulcan.

This Budapest bar allows drinkers to leave their mark on the walls, floor, and even ceiling.

Giant busts of 42 U.S. presidents are sitting in a field in Virginia.

A rare view of a preserved Victorian science museum.

Tiny observatory made big contributions to the study of the Earth's motion.

The shelves in the back of this thrift store are devoted to saving, not selling, retro tech.

Enormous piles of historically significant stones, dumped by Congress in a forest, and abandoned for 60 years.

A Civil War fort in the middle of Washington, D.C. has been swallowed by a forest.