A well-preserved network of cavernous tunnels have spent silent centuries removing Toronto's waste.

A 1,000 pound brass bell commemorates a time when this small maritime neighborhood was actually its own separate city.

Deep into the lower floors of Pike Place, find a date with fowl fate.

An old-timey peepshow allows visitors to gawk at some of the world's most freakishly large footwear.

The flock of plastic poultry is an ode to the classic comedy staple.

This popular bar has been blurring the line between normal and edgy for more than 75 years.

A wall of chewing gum moonlights as collective art.

This former coal gasification plant found a curious second life as a popular public park.

The world's largest mountain carving could fit all of Mount Rushmore inside it many times over.

The first declared National Monument in the United States.

One of corporate America's best-kept secrets is also one of the most publicly displayed.

Mussolini gave Cincinnati a bronze statue of Romulus and Remus suckling at a wolf's teats.

This magnificent Cincinnati graveyard is also a popular public park.

Where beautiful signs live on forever.

Four glass boxes hover over 1,000 feet in the air to give visitors an unparalleled view of Chicago.

The world's only three-story rotary jail is now a museum to a bizarre trend in prison design.

Beating out all other concrete competitors, this massive garden feature's pointy hat has earned it a world record.

A place of great reverence for Trekkies everywhere, a hero's future birthplace.

This massive railroad spike celebrates the 1939 premiere of the movie “Union Pacific.”

An ornate Art Deco tile mosaic representing Nebraskan life, both modern and prehistoric.

The world's largest key collection features keys to the White House, Frankenstein's castle, and Hitler's bunker.

Paranormal experiences in this hotel's room 217 led Stephen King to write "The Shining."

The neon signs from Las Vegas' past find their final resting place at this unusual graveyard.

Beer lover's can-covered house.