A gorgeous example of 13th-century Gothic architecture.

These elaborate gothic monuments honor Verona's medieval lords.

A whale rib was used to advertise the store by the arch that offered exotic goods from far away.

Pilgrimage site for star-crossed lovers.

This museum houses and extensive collection of technology contributed by the Polish people.

The hallowed ground of one of the worst atrocities in United States history.

When this funny little building went up in the 19th century, most people thought it would simply fall over.

A fake medieval village in the middle of Turin.

A portrayal of two lamps embraced and in love.

This building has a giant piercing through one of its corners.

The intricate geometry inside this Baroque-style dome was designed to create "terror of the human soul."

At one of Berlin’s oldest churches, visitors can place mosaic tiles to help restore a medieval mural.

One of downtown Berlin's last reminders of its Communist past.

A tomb with a window to ensure the interred wasn't buried alive.

The concrete shell of an industry giant remains as a playground for graffiti artists, auto scrappers, and paintball warriors.

It was once the base for a series of domestic terror attacks.

The final residence of an educator, civil rights leader, and presidential advisor was also the first headquarters of the National Council of Negro Women.

The 5.5-mile ring of steel posts around the Capitol Building is one of the largest (and most uniform) of its kind in the world.

This fertility idol of questionable authenticity inspired an iconic Indiana Jones artifact.

A 1,100-ton train fell through the floor in 1953. Workers got it patched up in just 72 hours.

The school tested mustard gas for the U.S. Army during World War I.

Atop this media building, two hives containing more than 30,000 bees keep the surrounding area vibrant.

A hidden passageway now marks the site of an assassination attempt on Ronald Reagan that some say broke a 140-year-old curse.

Look closely and you’ll notice that the color changes a third of the way up the tower.