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.

The unluckiest U-boat in the entire German fleet is now on display in a Chicago museum.

This $3 million model train takes you through Chicago, Seattle, and the thousands of miles in between.

A wonderland of caves in eastern Iowa.

First planned industrial community in the United States.

One of the few remaining relics of the meatpacking hub that made Chicago the "hog butcher to the world."

Illegal drag racing two stories beneath Chicago’s streets.

A 19th-century horse lover's bequest led to the construction of this unique fountain in Chicago.

Look closely and you’ll notice that the color changes a third of the way up the tower.

A 1,100-ton train fell through the floor in 1953. Workers got it patched up in just 72 hours.

Those with a sharp eye can find the hidden image of a German Shepherd on the memorial's Mural Wall.

A little marble compass above George Washington's (empty) tomb in the Capitol marks where D.C.'s four quadrants intersect.

This statue of the "father of television" stands prominently in the United States Capitol.

The sign that drew attention to a young boy's cucumber stand is now the name of his fruit superstore.

"We Seceded Where Others Failed."

A monument celebrating the idea of reaching inaccessible places.

The highway's southernmost spot is a beloved local attraction.

This nondescript tunnel has been featured in a number of iconic movies, from “Roger Rabbit” to “Back to the Future.”

Art Deco stylings conceal the true nature of this bridge.

A second generation sun-powered marvel lights up the night.

This quirky UFO-shaped curiosity is often mistaken for the airport’s control tower.

Legendary frontman of the Doors looms in this giant mural by famed Venice muralist, Rip Cronk.

A sign at the end of the Santa Monica Pier marks the traditional end of the legendary American highway.