One of the oldest producers of hand-folded fortune cookies still uses its original secret recipe.

This private residence was the template for one of the most beloved television homes of all time.

A collection of 20th-century automata, penny arcade games, and musical contraptions.

Tiki luxury on Nob Hill.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

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

This massive library holds what was once the largest book collection in the world.

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

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

The celebrated eyesore created by starry-eyed sweethearts.

Shop at the 200-year-old store where Julia Child stocked up on copper cookware.

The spiral staircase hidden inside this giant Parisian column was likely built for Catherine de Medici's astrologer.

A popular shrine where the Blessed Virgin allegedly appeared in 1830, displaying a holy armchair and two incorruptible remains of Lady Saints.

Two awe-inspiring globes from the reign of the Sun King hang from the ceiling of France's national library.

This off-limits room in the National Library of France is home to a system of pneumatic tubes, once used to bring books to readers.

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.

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

Site of a classic 19th-century physics experiment to prove the earth is rotating.

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.

A mythical chimera first sculpted in 1936 as a mix of the main animals of Texas livestock.

A "Texanic" (gigantic Texas) collection of Art Deco architecture at Dallas' historic Fair Park.

This downtown Dallas art installation is always on the lookout.