Shop of curiosities with a dinosaur museum tucked in its basement.

A haunting statue called "Eternal Silence" has quite the reputation among visitors with active imaginations.

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

These ancient sacred grounds granted amnesty to those who managed to reach them.

The island of Lanai in Hawai'i is a paradise for cats and cat lovers.

A scandalous Art Nouveau collaboration that set Paris all atwitter at the turn of the 20th century.

Abandoned railway line circling the city of Paris.

The video game-themed street art first popped up in the French city.

This recessed garden protects thousands of mountain plants by creating its own microclimates.

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.

Down a cobblestone alleyway is a museum dedicated to Romanticism, with a secret garden.

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.

Walk through spectacular aisles of hanging meat and wagon wheel–sized cheese at the world's largest wholesale food market.

This surreal statue brings a famous French novel about a supernatural cad to arresting life.

This quarter-mile tunnel under the Bluff in Pittsburgh bends at a 45-degree angle.

This restored house is like a time capsule of the president's unconventional inauguration.

A near tragic event on this bridge helped inspire the classic film "It's a Wonderful Life."

This statue commemorates the meeting of the most influential minds of the women’s rights movement.

What remains of the simple red brick chapel where the women's rights movement began.

A giant bronze coil of feces is both a tribute to doggie defecation and a reminder to pick it up.

One of the oldest used bookstores in the U.S. has been selling antiquarian treasures since 1825.

This rare polygonal meeting house is rumored to be built in a circle so that the devil has nowhere to hide.

This cavernous abandoned marble mine is popular with ice skaters in the winter.