An atomic bomb-proof strongbox protects the U.S. Constitution from terrorists and thieves.

"Congress may voluntarily remain in session throughout the summer, in order that our Congressmen may be protected from the intolerable discomforts and dangers of the ordinary outdoor weather!”

Rumor has it the uncarved lump behind the three famous suffragists is reserved for the first woman president.

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

The remains of Martha, the last known passenger pigeon, serve as a tool to educate about conservation.

The "lovely red Vega" of the legendary record-settling pilot.

A lovely aquatic park built by a one-armed Civil War veteran who made a fortune from lotuses.

The actual model from the original "Star Trek" series is now on display at the National Air and Space Museum.

The beloved statue at the National Academy of Sciences is oh so inviting to sit on.

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

A nostalgic bibliographic gem.

During the Industrial Revolution this “Temple of Invention” was full of intricate miniature machines and gadgets.

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

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

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

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

The United States Capitol's former columns still stand.

A massive Montreal stadium that has seen nothing but trouble since its inception.

Designed by Buckminster Fuller, this relic of the 67 Expo survived fire and ice.

This 1967 experiment in modular architecture was designed to be a new model for urban living.

Train tunnel running underneath Quebec City.

This lovely, if imposing, piece of Canadian gothic is possibly the most photographed hotel in the world.

Coastal dunes, site of buried Egyptian movie set and former utopian colony.

The private clubhouse for the members of the Academy of Magical Arts.