A Medieval Water Tower in the Heart of Massachusetts.

In the middle of a New England forest sit the crumbling ruins of World War II-era ammunition storage bunkers.

This colorful theme park dedicated the official fruit of Maine serves sweet, tasty treats.

A pink cottage covered in hearts served as a haven and a resting place for LGBTQ activists.

Scotland's first Masonic lodge may also be the oldest in the world.

Heralded as the oldest statue in London.

“Live hard, ride fast, eat pizza” at this joint filled with Evel Knievel memorabilia.

One of the best-preserved medieval streets in Europe.

A tunnel that brings more than a century of history to life from the deepest parts of the Niagara Gorge.

This work of engineering is imbued with elegance and ingeniousness.

A monument to the groundbreaking environmentalist sits near the place where she first experienced the sea.

The hallucinogenic center of the ancient world.

The "World's Largest Underground Business Complex," a 55,000,000-square-foot city underneath Missouri.

From bench to vandalism to art, this silly prank seat was funny enough to become permanent.

This dam in the woods, built by Henry Ford with only manpower and oxen, holds no water and serves no purpose.

Everyone's favorite clay duo immortalized in bronze.

This railroad tunnel was once the longest in Massachusetts.

Once the largest gravity dam in the world.

The ruins of a 2,000-year-old Roman fishing village perched on one of the best beaches in Spain.

One of the few remaining casualties of the London Blitz, this destroyed church has become an enchanting public garden.

Non-profit time travel mart sells goods you would need for a trip through the fourth dimension.

This tree was grafted from the actual tree that led Isaac Newton to ponder the theory of gravity.

What appears to be an ancient Roman temple is actually a Catholic church.

A huge musical instrument played by the ocean.