A 400-foot-tall tall map of Chicago makes this once-ignored building stand out.

In 2004, a Dave Matthews Band tour bus dumped 800 pounds of waste off a bridge and onto an unsuspecting tour boat below.

A spectacular remnant of an Adler and Sullivan masterpiece that was destroyed in 1972.

A journey begins with a single step, and for many, the road-trip of a lifetime started at this Chicago intersection.

Fragments of architectural wonders from around the globe are embedded in the newspaper building's walls.

The first public building in Savannah to offer air conditioning was a luxurious cinema that still operates today.

An early-19th-century hotel with a past that is steeped in the Civil War.

One of Savannah's oldest and most haunted cemeteries, featuring graves desecrated by Sherman's Union Army.

This whimsical campus lawn is dotted with large sculpted numbers and hidden mathematical formulas.

The home made famous by the 1983 holiday classic is now a perfectly preserved shrine to the movie.

A 19th-century architectural wonder designed by the "father of the skyscraper."

This Czar-funded, onion-domed, lavishly muraled Orthodox Church played a starring role in "The Deer Hunter."

This spectacular public market has got meat, fish, vegetables, baked goods, and enough kielbasa for a lifetime.

There is only one place in the world where the corners of four nations come together.

This trio of bronze giants celebrate the influential trip to Britain that led to Botswana's independence.

One of the most spectacular bridges in Spain spans a narrow chasm that divides the city of Ronda.

This staircase in a lush tropical grotto was built by enslaved laborers and renamed to honor Queen Victoria's role in ending slavery in the British Empire.

Known as the site of 'El Dorado,' this mysterious lake is rumored to hold gold beneath its waters.

Cathedral carved out of salt, located a mile below the earth's surface.

This Bogotá museum houses the world's largest collection of pre-Columbian gold relics.

This massive, ancient stone was disassembled and then put back together again.

A touching tribute to the "Wonky Donkey."

This fort down the Potomac from Washington, D.C. was once the only defensive fort protecting the capital.

This rare triple-jurisdiction drawbridge passes through Virginia, Maryland, and Washington, D.C.