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

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

A castle from the Holy Roman Empire that hosts traveling youth... in its stables.

This lurid German fountain plots the sad course of marriage from dating to death.

Pilgrimage site for star-crossed lovers.

An ancient Egyptian temple in the middle of Madrid, Spain.

In order to save this beloved rock, locals blew it up and put it back together piece by piece.

The world's largest piece of copyrighted artwork.

Once the future of underwater combat, this old sub is now open for visitors to muck around in.

The childhood home of the meat inspector who would become the face of America.

Two thousand artifacts from around the world collected by one woman who loved to travel.

This impressive Boston holy house is the American mecca for Christian scientists.

An enormous, inside-out glass globe built in 1935.

One of the last remaining World War II Victory Gardens in the U.S. is quietly growing across from Fenway Park.

Ice cream stand, snack bar, and time capsule of milk conveyance.

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

A men’s restroom became a sandwich shop.

This bridge was the birthplace of a unit of measurement based on a fraternity joke.

Mrs. Mallard and her brood are a beloved fixture in Boston Public Garden.

The American Revolution was galvanized into serious action due to the tragic clash with British soldiers that occurred at this location.

This massive tea kettle was once a promotional stunt for the Oriental Teashop.

A former waterfront market is now in the center of town due to some interesting Boston engineering.

An interesting decoration on this historic site, this weathervane comes with as many legends as it does questions.

An easy-to-miss garden in Boston's North End honors the mother of JFK and others who lost children in WWII.