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

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

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

The world's largest reflecting pool is just two centimeters deep.

Lady Liberty's original designer installed a little clone in this French fountain.

This Bordeaux parking garage has 712 indoor spaces, and one outdoor.

In Lago Superiore, the largest expanse of lotus flowers outside of Asia is hard to miss.

A cheeky reminder about the value of art dangles above one of Olomouc's busiest streets.

Once home to artillery, this garden offers more peace today than it did during its war-torn past.

This massive complex is made up of hundreds of smaller temples that date back to the ninth century.

A precariously balanced rock perches on the edge of a cliff created tens of thousands of years ago by glacial erosion.

East meets West in this Japanese-style garden featuring plants native to Maine’s Mount Desert Island.

The mummies of a fake priest and bandit's wife are among the abundant curiosities at this museum.

Rare recess caves fill this unbelievably beautiful Ohio park.

This former peat factory was transformed into an observatory before being abandoned once again.

High in the Sacramento Mountains, a facility dedicated to studying the sun.

A planet-hunting astrograph built in the 1920s to seek out the so-called "Planet X" beyond Uranus.

With its vast selection of books, comics, and records, this nearly 70-year-old open-air market always rewards the patient browser.

Designed to celebrate more than a century of circus performances in Australia.

This semi-spooky remnant of an abandoned hotel provides fantastic views.

Each of these 87 large stones has a unique message. Together, they form part of the Minnesota Military Family Tribute.

This 19th-century ghost town offers a stunning view of Lake Michigan and a journey through the region's industrial past.

A town pays homage to its namesake.

Everyone from Alan Ginsberg to The Rolling Stones has stopped by this classic dive bar.