Most-visited and most-photographed slot canyon in the American Southwest.

Rippling sand dunes frozen in the Arizona rock.

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

Built for television, this statue now serves as an unlikely memorial to a fireman who died on 9/11.

Uh, pardon me, ma'am, but I couldn't help noticing that there's a Columbo statue in the middle of Budapest.

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

Museum dedicated to the terror regimes of Hungary.

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

A series of caves under Castle Hill that once held the prisoner Vlad Tepes, better known as Count Dracula.

This Hungarian castle was built out of cardboard and wood until it proved so popular that it got upgraded to stone.

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

True to its name, this bouncy walkway may be the world’s smallest suspension bridge.

With some 500,000 books across five buildings, this bookstore is a reader's paradise.

These bronze pamphlets remember a remarkable group of Germans who fearlessly opposed the Nazis in the very center of their power.

A silly medieval mural preserved on the side of a Viennese house.

The townhouse where the "Blood Countess" Elizabeth Báthory started her murderous career.

Thousands of slain Soviet soldiers are buried within the shadow of this enormous obelisk.

The largest fountain in Bratislava.

A small square plaque marks a failed assassination attempt that could have changed history.

Among the ostentatious rococo ornamentation of this church, an image of death cuts the life-thread.

A fearsome dragon clings to a corner of Munich's city hall.

From Ancient Rome to WWII, Neupfarrplatz has over 2,000 years of history underneath its main square.

Shimmering sea-colored mosaics and Jesus statues cover this opulent building.

When a medieval fire claimed the original St. Stephen’s Cathedral, it sparked a pattern of unquenchable organ building.