This quaint Hungarian railway system is operated exclusively by children between the ages of 10 and 14.

This collection of reclaimed landmines acts as both an exhibition of their deadly history and as a shelter for children affected by them.

Legend says that this short Canadian tunnel still holds the dying screams of a girl who burned alive.

A burnt orange monolithic dome structure perched on a hillside near Interstate 280.

A swing to dangle you off the very edge.

This head-spinningly bizarre Depression-era art cave is wall-to-wall quartz and Jesus.

Some of the smallest works of art in existence.

This church, better known for its weeping portrait of the Virgin Mary, also houses the world's oldest existing piece of taxidermy.

A sinuous path among steep cliffs creates a stunning sight in southwestern Serbia.

The freeway that never was.

Double spiral staircases are not unheard of, but they are very rare.

These grassy undulations on a stretch of University of Michigan campus aren't bad landscaping, they're art.

While only two of the ancient buildings at this site are actually churches this was one of the earliest Irish pilgrimage sites ever.

This evocatively named natural crevasse was created by a torrent of water that smashed right through a granite deposit.

This Scottish bridge seems to compel dogs to leap to their death.

The gravestone of the suffragist leader attracted extra visitors during the 2016 election.

These massive moving sand dunes have swallowed an entire village and are still on the run.

This micronation's flag honors its favorite drink, Kaffegöken, or "cuckoo-coffee."

Brawny guys rolling around in oil is the oldest regular sporting event besides the Olympics.

A small burial plot formerly stranded in the middle of a road.

An impromptu shrine appeared shortly after beloved "Torchwood" character Ianto Jones was killed off the show.

A men’s restroom became a sandwich shop.

The nation's second-ever First Lady urged the founding fathers to "remember the ladies."

The final resting place of a suffragist author.