A little-known subterranean street runs under some of the best-known buildings in Chicago's River North.

The original Garfield station is the oldest station facility on the "L", with the station house dating from 1892.

First planned industrial community in the United States.

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

Rifle through images of skyscrapers, Worlds Fairs, and more in the largest public postcard repository in America.

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

Over 1,000 pieces of one of the most niche art objects imaginable: the glass paperweight.

Small and slightly hidden, the American Writers Museum is preserving the legacy of America's finest authors.

This historic house museum that celebrates one of the world's most influential social reformers is also one of the most haunted locations in Chicago.

A small Chicago museum filled with thousands of preserved butterflies, beetles, and more.

Kwanu'sila the Thunderbird has been silently watching over Chicago for more than 100 years (kind of).

This shop for all your super spy needs hides an educational secret.

This morbid, delightful curiosity shop offers everything from animal bones to human teeth.

One in a pair of subterranean caves created by an ancient eruption of Mount Fuji.

A 70-foot-deep ice cave formed by lava from Mt. Fuji on the edge of Japan's "Suicide Forest." 

The oldest hotel in the world has been operated by the same family for over 1,300 years, even catering to samurai.

A beautiful and abandoned New York subway station from 1904, complete with chandelier.

This old residential building was once the largest flour mill in the world.

After the musical legend's death, his memorial was mysteriously graffitied in gold.

A fence constructed completely of skis on Monroe Street.

One of the coolest murals in Minneapolis.

The dishes at this restaurant by The Sioux Chef celebrate indigenous heritage.

This kaleidoscopic mural shows Bob Dylan throughout his transition from young troubadour to Nobel laureate.

This 1960s kinetic artwork has been restored and is once again whirling away in downtown Minneapolis.