This incredible collection of vintage pinball machines can be played at 25 cents a pop.

Flashy signs from Las Vegas’s past find their final resting place at this unusual graveyard.

A half-mile long and three stories high, this bridge over the Des Moines River Valley mimics a descent into a mine shaft.

A downtown park built on top of unclaimed graves.

A cavernous three-story, 43,800-square-foot basement that was forgotten about for 60 years.

The de facto symbol of Copenhagen is this bronze fairytale which cannot seem to keep its head for very long.

A statue marks the exact spot where The Boy Who Never Grows Up made his first literary appearance.

Mrs. Mallard and her brood are a beloved fixture in Boston Public Garden.

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

An art deco ice cream shop covered in vintage tiles.

The largest bell in the world has been swinging high above a Cologne cathedral for almost a century.

Thousands of tourists and residents in Cologne affix "love padlocks" on the Hohenzollernbrücke Bridge to symbolize their affections.

Giant WWII fortresses that fired 8,000 rounds a minute, now home to thousands of pigeons.

This Slovak bridge is known both for its connection to a national uprising and its UFO-shaped eatery.

Millions of dollars worth of sculpture decorate this Iowa city center.

This zombie-themed restaurant stands out in the heart of corn country.

Two hundred tons of pioneer artifacts were painstakingly recovered from a shipwreck at the bottom of the Missouri River.

Oldest Museum of the Netherlands is a true cabinet of curiosities.

This unattributed sculpture in Amsterdam is hiding in plain sight.

Unsurprisingly, Holland is home to one of the most magnificent flower gardens in the world.

The Bloemen Route, or “Flower Route”, stretches 25 miles through prime Dutch tulip country as a result of “tulip mania,” the world’s first economic bubble.

A beautifully eclectic mix of architectural styles.

Amsterdam's Red Light District leaves little to the imagination.

This city square is home to Amsterdam's oldest church and a statue honoring Dutch sex workers.