In 1953, a group of Wisconsin high school students helped build a hospital by collecting over a million pennies.

The site of a 19th century "dream city" that almost rivaled Chicago before being swallowed by the Indiana sand dunes.

A chilling disappearance (and rescue) of a child uncovers a geological mystery.

Wisconsin's most celebrated export gets the royal treatment on I-94.

This lakefront cottage was crafted in the 1800s and was once a sanitorium.

The final resting place of Gary Gygax; co-creator of Dungeons and Dragons.

Legend says Dungeons and Dragons players can get their dice blessed at the creator of the game's memorial.

A historic ballroom host to famous performers from the big band era to 1980s rock.

Home to the world's largest refracting telescope and the birthplace of modern astrophysics.

This was once the largest four-sided clock in the world (yes, even bigger than Big Ben).

A tiny 1857 chapel sits on top of a secluded, forested hill.

Picturesque and haunting, these 160-year-old stone ruins on top of a bluff are the only remains of a settler's legacy.

Outside of one of Britain's most renowned social clubs, a step installed specifically for the Duke.

The final resting place of a German diplomat's beloved companion.

An archway adorned with vulnerable flora and fauna.

London's smallest police station is barely the size of a phone booth.

These official units of measurement—including chains and perches—lie hidden beneath tourists' feet in a popular London hub.

Originally meant to hold a statue of King William IV, this support sat empty for years. Today, it hosts a rotating cast of public artwork.

An unusual ode to the late Irish playwright, complete with a squiggly bust and coffin-shaped bench.

This London pub hides a peculiar secret: a recreation of the rooms shared at 221b Baker Street by Sherlock Holmes and Dr. Watson.

One of America's founding fathers lived in this London lodging between 1757 and 1775.

The world's oldest optical museum is an odd collection where the exhibits look at you.

The medieval woodcut-style artwork chronicles life in medieval London.

A living memorial to the trees London lost during the Great Storm of 1987.