Spain's largest bullring offers a unique glimpse at architecture and history.

The world's largest wooden structure.

The final resting place of the great navigator, or maybe his brother.

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

Those with a sharp eye can find the hidden image of a German Shepherd on the memorial's Mural Wall.

Home to items never before seen by the public.

The site of the climactic scene from the classic horror film is now a historic landmark.

A downtown park built on top of unclaimed graves.

The Denver airport is guarded by a 32-foot-tall sculpture of a demonic horse.

This small-town pizzeria won the Hollywood lottery.

The world's largest public collection of PEZ memorabilia.

Holding multiple historical boats and an entire 19th century village, this New England attraction is the largest maritime museum in the world.

These towering spires and glowing walls are carefully crafted from hundreds of thousands of icicles.

The factory for the popular Dumbo location, the Greenpoint shop is a quiet gem.

The statue of John Harvard isn't actually John Harvard—or even, technically, the founder of the school.

The world's largest piece of copyrighted artwork.

One of the few remaining monuments dedicated to South Boston's Irish heritage.

The headquarters of one of the world’s longest-running humor magazines bears a noticeable resemblance to a head wearing a Prussian helmet.

Each August, one of the largest religious (and food) celebrations in the country is held in Boston.

This peaceful Massachusetts graveyard was one of the first "garden-style" cemeteries in America.

A men’s restroom became a sandwich shop.

"the sweltering inhabitants of Charleston and New Orleans, of Madras and Bombay and Calcutta, drink at my well . . . The pure Walden water is mingled with the sacred water of the Ganges."

This miniature feudal castle was built on a whim to honor a US Navy pioneer.

No one really knows how these old hobby horses got here, but the herd keeps growing.