This unique tower has been home to malaria-fighting bats for 100 years.

Modern technology and live displays tell the story of the Pacific during WWII for the Internet generation.

An enormous pink granite batholith, long attributed with spiritual powers by the Tonkawa Indians.

This award-winning men's bathroom was just too beautiful to not allow women to see.

At 135 years old and counting, this historic print shop is heaven for poster nerds and music buffs.

This replica of the Greek structure is in the heart of Nashville.

A copy of the famous statue can be found in this Florence piazza, along with one of the most breathtaking views of the city below.

In the world's oldest university is a stunning 17th century anatomical theater carved from spruce.

Over 100 towers were built in Bologna during the Middle Ages, but only 22 survive.

This strange bovine gargoyle is said to have been put in as a passive aggressive form of revenge.

These medieval skyscrapers dominate the skyline of this small Tuscan town.

Pilgrimage site for star-crossed lovers.

Two thirds of this Montreal neon icon has survived to flash another day.

Every year, the colorful murals of Montreal get a complete makeover.

A historic Montreal market that was the city's agricultural hub for over century.

Montreal's giant farmer's market is a foodie's best friend, especially in the winter months.

A Montreal deli that was so beloved that it was allowed to circumvent their laws of language.

A grand Gothic Revival basilica with stained glass depictions of Montreal's religious history has only one soul resting in its crypt.

This abandoned Poconos resort is haunted by a history of kitschy romance and a violent fugitive.

A popular swimming hole that hides one of America's most deadly diving spots.

Home to the largest urban bat colony in North America, estimated at 1.5 million bats.

The superstar of Cold War nuclear bunkers has been featured in countless films but is now barely operational.

This rugged area of red rocks and arches is often considered one of the most beautiful places on Earth.

An abandoned stretch of highway, deteriorating next to the operational one.