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

The very center of Paris is surrounded by a bevy of strange good luck rituals.

This charming cobbled backstreet is the most Instagramable street in Paris, much to the residents' annoyance.

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

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

How did a French journalist’s grave become the sexiest statue in the cemetery?

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

This museum is dedicated to the little known ancient Roman history of Vienna.

Yale University's home for rare works, including the mysterious Voynich Manuscript.

The secluded beach getaway from Wes Anderson's dreamy summer romance.

A giant green dragon crawls down from the roof of the Providence Children's Museum.

This "life-size" depiction of Mickey Mouse as a half-lobster is both whimsical and a bit creepy, standing guard over the Boston waterfront.

These expertly crafted, scientifically accurate glass sea creatures were once an international phenomenon.

The library of every book lover's dreams.

The world's only international cryptozoology museum is host to an unrivaled collection of mysterious objects.

The only structure left with direct ties to the Salem witchcraft trials of 1692.

This candy-colored storybook village originated as a 19th-century Methodist campground.

From dragonfruit to mangoes to durian this Thailand resort allows guests to stay inside all manner of giant fruit.

Quite simply the largest tree in the world (by volume).

San Francisco's oldest surviving monument and meeting place for 1906 survivors.

The last remaining relic of San Francisco's glittering 1915 Panama Pacific Exposition.

Its buzzing collection honors vibrator history.

Olfactory delights in San Francisco's Botanical Gardens.

An artsy hidden staircase leads to breathtaking views of San Francisco.