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

This steep cable railway has been hoisting passengers in the heart of Québec City for over a century.

One of Mexico's least-visited archaeological sites is tucked away inside a theme park.

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

The National Park Service’s best-kept secret with views that rival any in D.C.

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

The oldest building in the District of Columbia was preserved because of a mistaken connection to George Washington.

The national park was once a plantation estate.

The tomb was guarded by soldiers from both sides of the war, and some left their initials carved in the brick.

The graveyard holding the remains of George Washington's slaves was forgotten for nearly 200 years.

This stately building in Alexandria, Virginia was built by Freemasons to honor one of their most famous members.

The narrowest house in America is seven feet of pure spite.

A former major munitions plant that has been converted into a sprawling art space.

An original apothecary from 1792.

This colonial tavern played host to George Washington, Thomas Jefferson, and other famous early Americans.

Constant erosion has created a surreal landscape of bleached and preserved fallen trees.

Georgia's first brewery is also one of its oldest surviving buildings.

A modest walled graveyard where nobody is actually buried.

If all members were present at the table, a sixth of the world's wealth would be under the same roof.

Based in a former haberdashery, Florida’s oldest continually-operating bar has a rich nautical history and lots of local lore.

A luxurious 1880s hotel with its fair share of Tiffany stained glass, Edison electricity, and of course, ghosts.

Possibly the world's oldest rug, this Egyptian relic is woven entirely from ancient cat hair and once carried a mummified human foot.

What was once a presidential estate is now an exotic menagerie and home to the Budweiser Clydesdales.

Paranormal experiences in this hotel's room 217 led Stephen King to write "The Shining."