This covert museum showcases booties worn by a rescue dog and slippers owned by Queen Elizabeth II.

This clock was gifted to Mexico as a show of gratitude for its long history of welcoming Arab migrants.

Part bookstore, part café, and part forest.

A modest walled graveyard where nobody is actually buried.

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

This road winds through the steep coastal cliffside offering spectacular views for those who brave the drive.

The haunting beauty of this little-visited wreck makes it a true hidden treasure.

More than 7,000 gallons of water pour over these cascading red quartzite waterfalls every second.

Elaborate tile work in this railway station tells the story of Portugal.

The stunning interior of this Gothic church is covered in ornate gold details.

Ancient catacombs form the foundation for this Rococo orgy of a church.

This giant sculpture made of trash is a critique of society's wastefulness.

This restored Portuguese cafe may well be the most beautiful place in the world to grab a Big Mac.

One of the most beautiful bookstores in the world hides a neo-Gothic interior behind an art nouveau facade.

A hidden three-foot-wide house separates these two regal churches.

Home of the "true" equator.

An elaborate shrine dedicated to the four corners of the world unfortunately misses its mark.

This stone complex marks the urban center of a lost civilization.

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

A superbly preserved example of Georgian residential architecture that was once home to one of the founders of Alexandria, Virginia.

This small pedestal marks the spot of the first lot of land sold in Alexandria, Virginia in 1749.

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

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

This Roman statue is missing a limb from when the Venetians stole it from Constantinople during the Crusades.