The last remnants of a massive medieval wall that once encompassed the city of Berlin.

An Aztec snake god has taken the material form of an apartment complex.

The oldest Naval chapel in the United States is home to an incredible collection of Tiffany stained-glass windows.

Edinburgh’s version of the Sistine Chapel is this former church, with an interior covered in paintings done by one woman over the course of nearly a decade.

With a floor made of thick glass, this observation deck offers a full view of Sunwapta Valley's mountains and rivers.

The natural hot spring that was integral to the creation of Canada's first national park.

Once home to over 8,000 exiled Hawaiians suffering from Hansen's Disease.

Submerged lava formations create incredible waterworks.

A prehistoric landscape hidden in the cliffs of Maha'ulepu.

A unique set of caves that spits waves back out into the ocean.

Climbing this abandoned railway leads to breathtaking vistas of O‘ahu.

The air force base preserves its scars from the Japanese attack on Pearl Harbor.

This museum of Hawaiian and Polynesian culture is the legacy of the last descendant of the Kamehameha Dynasty.

This structure atop a craggy cliff in one of the most beautiful parks in Paris boasts an unbeatable view.

The oldest continuously operating mint in the world that has been making coins since the 9th-century.

This former “ante-chamber to the guillotine” has been refurbished to illustrate the brutal history of French justice.

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

The stoic structure boasts a whimsical set of stained glass art commemorating Lewis Carroll.

In Warrington’s Golden Square, it's always tea time.

Rome is now home to a stunning food museum and library.

The world's oldest rose is so tough it survived being bombed in World War II.

This massive crater in the middle of nowhere was used to train astronauts for moon landings.

This freshwater spring fills with 10,000 gallons of water per minute.

This whimsical group of statues is a favorite of children who love to climb all over Lewis Carroll's beloved characters.