Once called the "Polish Gold Coast" it is an icon of the neighborhood that bears its same name.

A European-style bath house in Chicago.

Tiny communists hammer away on the Olomouc Astronomical Clock.

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

Oldest Protestant church in the Middle East, designed to resemble a synagogue.

Go inside to really appreciate this 500-year-old technological masterpiece.

Macabre astrological automaton clock dating to the late 1400s.

Synagogue built from the stones of Solomon's temple contains the golem of Prague.

Metro station with a claim to rock n' roll fame.

Daily jousts and dancing barrel makers in Munich's mechanical clock.

The patron saint of spinsters grasps a container of dried blood.

An experimental, automotive replica of Stonehenge.

A four story, football field-sized, nine-grotto creation made of shells, minerals, and rare stones.

Megachurch turned Catholic church comprised of 10,000 glass panes.

San Francisco's newly reopened hands-on science museum.

A still functioning vaudeville carousel that has operated for over a century boasts a colorful menagerie and past.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

Oldest building in California still in use.

The world's longest known cave system.

A terrific purveyor of natural history objects and curios.

A curious fountain that has no water and includes Satan, a crab, and 9 giraffes.

The largest source of fossilized insects anywhere.

Books you don’t need in a place you can’t find.

The only structure left with direct ties to the Salem witchcraft trials of 1692.