One man’s hobby is another man’s world of metal wonders.

There must be a pun in this haystack somewhere...

Mausoleums, astronomy, and animatronic dinosaurs at this memorial to an assassinated American president.

The 25th President's marble casket can be visited in this classical Ohio tomb.

This campus museum commemorates a national tragedy.

Memorials and tributes scattered across the university grounds remember a famous national tragedy of the Nixon era.

The only U.S. Senator to die on the field of battle is buried in San Francisco but memorialized at Balls Bluff Regional Park.

Knoxville’s architectural icon was the symbol of the 1982 World’s Fair, even catching the googly eye of Bart Simpson.

One day a year it is legal to jump off of this astoundingly tall bridge that spans an Appalachian gorge.

The hill that gave the Massachusett tribe, and later the state, its name.

The nation's second-ever First Lady urged the founding fathers to "remember the ladies."

The homestead of American patriot John Adams.

The water-powered carriages are long gone, but for over a century this funicular railway has been the fastest route to the highest point in Paris.

A horde of stray cats rule in this secluded Parisian cemetery under a bridge.

France's most famous cemetery, with some of its most curious tombs.

This former “ante-chamber to the guillotine” has been refurbished to illustrate the brutal history of French justice.

The tradition of open-air secondhand and antiquarian bookselling in Paris dates back to the Renaissance.

This iconic Parisian bookstore doubles as the "Tumbleweed Hotel" for traveling writers.

Remains of Roman amphitheater hidden in a sleepy quarter of Paris.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

The Sun King's military models, saved from the Louvre.

Twelve grave-faced marble angels guard the emperor's tomb at Les Invalides.

In this cobwebbed old operating theater, you can practically hear the screams of the unanesthetized patients.

This massive collection of British military artifacts includes the heartbreaking personal letters of the men in the trenches of WWI.