The geographical center of Budapest is marked with a 10-foot-tall stylized zero.

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

A sculpture of a beloved local figure, who tipped his top hat to everyone he passed on the streets of Bratislava.

An ode to a soldier who came to town, fell in love, then began making his own sparkling wine.

Launched by Napoleon's soldiers more than 200 years ago, a cannonball remains embedded in the tower wall.

Dedicated to a synagogue that was destroyed after having survived World War II.

This medieval synagogue survived the Inquisition as a hospital and church.

Designed as a reminder of one of the darkest moments in Austrian history.

In the middle of a Vienna square, Roman ruins dating back some 2,000 years are on display.

This series of Baroque passageways in Vienna's cultural center mix old architecture with modern art.

An exquisite Baroque church in Vienna's old town.

The solemn exterior conceals an opulent interior of this 17th century church.

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

Legends surround an ancient tree trunk riddled with nails for good luck.

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

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

The beautiful baroque library of the Hapsburg empire.

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

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

What looks like a suicide in progress is actually a statue of Sigmund Freud.

This tipsy office building in downtown Prague was originally called “Fred and Ginger.”

Macabre astrological automaton clock dating to the late 1400s.

The hidden lair of an alchemist rediscovered in a 2002 flood.

Two stunning 17th-century libraries and a cabinet of curiosities.