High atop the Eiffel Tower is a small apartment built exclusively to entertain the science elite and make the rest of Paris jealous.

Paris' linguistic guide to the international language of, yes, love.

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

One of corporate America's best-kept secrets is also one of the most publicly displayed.

Once a bustling cotton factory, this early 20th-century building is now home to a thriving artspace.

It may look like no more than a full-scale model, but every part of this full Space Shuttle stack had a working role in aviation history.

These markers are used to determine the ground stability of the Strip.

James Turrell's total color immersion art installation, hidden on the top floor of a luxury handbag shop.

Island where motor vehicles are banned -- home to the only carless highway in the United States.

When you visit his grave, be sure to rub the Great Emancipator's nose for good luck.

Four glass boxes hover over 1,000 feet in the air to give visitors an unparalleled view of Chicago.

Less a museum than a bizarre fantasy world created by artists and engineers.

Some of the tallest ancient American ruins continue to inspire awe and curiosity.

A cult following celebrates the legend that belies this curious podiatrists' office sign which has worked its way into song, literature, animation, and the visual arts.

A Cold War site complete with rusty structures, hiking trails, and beautiful views.

Hollywood's most famous landmark, the "temporary" sign that has stood for decades longer than intended.

This iconic L.A. bookshop is housed in an abandoned bank—both symbolic and chic.

Volunteers spent years restoring a vintage steam locomotive to operating condition.

This giant pocket watch is the third iteration of a local landmark that has been standing just off the Santa Fe Plaza for over 100 years.

This southwest-styled home in Santa Fe claims to be the oldest house in America thanks to an ancient bit of foundation.

An immersive environment that is part haunted house, part choose-your-own-adventure, and part jungle gym.

Walk through the actual strap iron cells and solitary chambers of Arizona Territory’s first prison.

After a short-lived attempt to bring America in line with the rest of the world, this road was left in metric.

America's only nuclear missile silo open to the public.