Inside houses a vast collection of military aircraft and missiles spanning the ages.

A headstone tells the sad story of a lost little boy and his pet dog.

The world's first aircraft factory has been hiding inside an automobile plant for almost 80 years.

This bridge uses an inverted bowstring truss and is believed to be the only of its kind in the United States.

The largest ancient burial mound in Ohio.

What is it about mushrooms that makes people wish they lived inside of them?

This humble star-gazing center touts itself as the "Birthplace of American Astronomy."

Historical structures and natural wonders await visitors to this preserve.

After a water tower painting was accused of being an ad, a simple fix was made that gave the city a motto.

These massive animal sculptures were constructed as part of a reality TV show challenge.

The site of Stockholm's last public execution.

Celebrating the Swedish ship used in the first Arctic expedition to navigate through the Northeast Passage.

Metal horses galloping through a London fountain provide a link to the city's past.

This hydraulic power system in London was, at one time, seen as a rival to electricity and the last of its kind to shut down.

It celebrates a very stinky task and salutes London's fatberg-vanquishing team.

This East End pub gained notoriety as the site where gangster Ronnie Kray publicly shot a rival.

This unassuming building produced some of the world's most famous bells.

Where condemned pirates met their grisly end at the gallows on the River Thames.

The first tunnel to be dug beneath a river, repurposed as an art and museum space.

A historic London pub with prison cells in the cellar and a "spy room" on the second floor.

"We gonna rock down to Electric Avenue, and then we'll take it higher..."

The childhood home of Earth's alien chameleon is a humble Brixton flat.

An artistic tribute to the famous singer, just around the corner from where he was born.

A tiny replica of the iconic London landmark hides on the side of the steel structure.