This memorial plaque remembers a strangely shallow maritime disaster known as "Chicago's Titanic."

Former bath house turns gastropub.

The iconic Chicago sculpture hides a beautiful and easily overlooked plaque on the backside.

This historic hotel invented the chocolate brownie.

A gothic church spire sits atop this skyscraper, the tallest church in the world.

This massive memorial commemorates those who died in the Manchester Arena bombing.

Two Ming Dynasty lion statues guard the entrance to the journalism school.

The iconic remains of the original Academic Hall that burned down in 1892.

The obelisk meant to mark the founding father's grave at Monticello is actually on the University of Missouri campus.

A plaque is all that remains of a lost Oxford transport hub.

The Old Courthouse takes visitors on a captivating trip through St. Louis' timeline.

A creepy sculpture of a decapitated head invites viewers to see St. Louis through its empty eyes.

This slice of 1960s Danish modernism does not conform to the Oxford college stereotypes.

The beloved home to all publications indie, erotic, and punky.

A little piece of Oxford's overlooked industrial heritage.

The remnants of this unusual bridge await an uncertain fate.

Once one of the largest rooms full of books in the world, this bookstore basement is still a treat for bibliophiles.

An extraordinary library and archive dedicated to the history of the Arctic and Antarctic poles.

A treasure trove of astronomical, mathematical, and scientific instruments at Cambridge University.

Local legend says Isaac Newton built this footbridge without any screws, bolts, or nails.

These ancient ruins were the final resting place of King Henry II's mistress.

A hidden plaque is the only reminder of the lost palace where two storied English kings were born.

Its collection includes a broad array of social, geographic, graphic design, and political history.

Site of the first hot air balloon flight conducted by the first English balloonist.