Order a salt beef-loaded beigel at any hour of the day or night at this East End institution.

One man's attempt to stay one step ahead of the church.

This life-size replica of the Statue of Liberty's flame is also a tribute to Princess Diana by default.

The unusual sculptures are believed to be powerful political symbols.

Nikola Tesla's ashes are held in a golden sphere, surrounded by his works.

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

A random tree outside a Budapest hotel has become a DIY shrine to the late singer.

Some of the greatest minds in the history of Hungarian art and science converged in this café.

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

This Budapest bar allows drinkers to leave their mark on the walls, floor, and even ceiling.

No one knows the origin of this creepy little stone man with an oversized phallus.

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

This Slovakian statue of an emerging sewer worker might just be a bronze peeping tom.

This spaceship sculpture in the middle of the Slovakian capital looks like it just crash-landed.

Vienna's diversity-themed traffic lights were inspired by the Eurovision Song Contest.

Vienna's giant wonder wheel had a starring role in one of the greatest noir movies of all time.

Built to give thanks for the passing of a plague epidemic, this cathedral is a one-of-a-kind architectural hybrid.

Destroyed Serbian army headquarters sits half crumbled in a largely revitalized Belgrade.

A towering spire in the fortress of Kalemegdan honors the victorious armies of Serbia during their struggles against the Ottoman Empire.

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

A triumphant marble and bronze fountain depicting a 15th-century Hungarian king and his hunting party.

The crypt of the imposing Stephensdom holds royal intestines and thousands of skeletons.

An ornate private entrance to the Vienna subway built specifically for the emperor.

The site is dedicated to an investigative journalist whose murder triggered a political uproar that changed Slovakia forever.