The first and only museum dedicated to stained glass and horology opened outside of Chicago in 2017.

All of Chicago's wood-paved streets are long gone but two alleys remain.

In one Chicago park, a trio of werewolves are waiting to devour their fallen brethren.

One of the most powerful computers in the world can be visited by anyone who wants to experience more computing than they can handle.

An actor's tribute to a former mentor.

This colorful and fiery mural depicts the Irish folk story of the beloved hero Cuchulain.

A 13th-century convent where St. Margaret of Hungary spent her teenage years.

A much-loved sculpture depicting the hero of a 1956 anti-Soviet uprising.

This off-beat, quirky communism-themed bar isn't afraid to poke fun at its history.

On Gellért Hill, this statue depicts the tragic tale of lovers divided by the Danube.

Also known as the Blue Church, the building was consecrated to the daughter of Andrew II.

A half-buried vehicle in Prague's is the latest iteration in a long-running piece by Czech artist David Černý.

Buried five stories underground, this Soviet bunker is packed with gas masks and Cold War paraphernalia.

Throughout this shopping mall are medieval ruins that were discovered during the mall's construction.

A sculpture of the iconic East German car on four legs is a tribute to those who traveled to Prague seeking asylum.

A spiral staircase connects the limestone cave with Pembroke Castle, birthplace of King Henry VII.

A little-known caravanserai hidden among farmhouses in the Turkish countryside.

A meow-velous tribute to a beloved street cat, made famous on the internet.

Climb a set of vertiginous stone steps to the top of this impressive ancient edifice.

A gorgeous, Gaudí-esque stairway constructed in the city of Istanbul by a prominent Jewish family.

The best-preserved ancient theater in the world.

A century-old network of freight tunnels underneath the city's historic business district.

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

An eccentric park and pool.