Clap your hands at the base of the pyramid, and the song of a sacred Mayan bird will echo through the air.

Every equinox this Maya pyramid puts on a spooky ancient light show.

La Monte Young and Marian Zazeela's "Dream House" will immerse you in an ever changing world of sound and light.

The Denver airport is guarded by a 32-foot-tall sculpture of a demonic horse.

Millions of numbers carved in glass represent the tattoos forced upon victims.

This small glass cube is a peaceful out-of-the-way sanctuary at the busy airport.

On a former island, this old fortification once used to protect the Boston Area and started Edgar Allan Poe in his military career.

The site of one of the strangest disasters in history—a wave of deadly molasses traveling at 35 mph.

One of the oldest used bookstores in the U.S. has been selling antiquarian treasures since 1825.

A display of magnificent stained glass windows is the first exhibit of its kind.

A historic beacon built in the aftermath of the worst maritime disaster on the Great Lakes.

This cheerfully-named branch of the Chicago River is the fetid result of years of blood, entrails, and meatpacking waste.

This urban drawbridge gained eternal pop culture fame when the Blues Brothers jumped it while it was raised.

Assemble a masterpiece at the first and only North American school exclusively dedicated to mosaic art.

A six-story-tall golden pyramid, surrounded by a moat.

Recognized the world over as the home of the McCallisters in the 1990 movie "Home Alone."

Chicago's North Park Village was once the largest municipal sanatorium in the country.

A haunting statue called "Eternal Silence" has quite the reputation among visitors with active imaginations.

You can take a class, browse the library, or visit the lavish lair of an international men's humor society.

Home to a protest movement, a bombing, and a dramatic change in labor history.

Odd, decrepit fountain honors Chicago author who had mixed feelings about his hometown.

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

Half-sized replica of the Leaning Tower of Pisa built to honor Galileo.

Beloved bar home to musicians of all eras and reputations.