Giant WWII fortresses that fired 8,000 rounds a minute, now home to thousands of pigeons.

Op-art architecture designed for happiness.

Baroque celebration of the end of the Great Plague of Vienna.

The Habsburgs' royal collections of art and wonders.

Beautiful Austrian natural history museum with carved ceilings and row after row of ancient taxidermy.

Ugly 18th-century dwarf statues living in a perfectly landscaped Austrian garden.

A statue in Budapest's Liberty Square honors the former U.S. president's efforts to end the Cold War.

Built in 1870 at the bridge that connected Buda and Pest, this spectacular incline railway was almost lost forever during World War II.

Museum dedicated to the terror regimes of Hungary.

A trail of iron footwear stands as a monument to the thousands executed along this riverbank during WWII.

This Slovak bridge is known both for its connection to a national uprising and its UFO-shaped eatery.

A century-old hotspot for jazz, frequented by everyone from Charlie Chaplin to Al Capone.

The site of the climactic scene from the classic horror film is now a historic landmark.

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

The burial ground of four Buganda monarchs was nearly destroyed by a devastating fire.

A strangely forgotten claimant to the much contested title of "Source of the Nile."

Popular tourist destination where witches in dark hats sell dried llama fetuses for good luck.

This giant Christ took first place in South America's religious arms race.

A church of bones, decorated with 40,000 human skeletons.

The former private quarters and office of Dr. Sigmund Freud now hosts a museum housing the works of the founding father of psychoanalysis.

The beautiful baroque library of the Hapsburg empire.

This landmark of the Chicago silent film industry may not be in the picture business anymore but it still stands proudly.

Hot Doug's "Hot Dog" Stand.

The twin towers in this Chicago fountain use 50 foot tall video screens to spit on people.