An enormous and lavish Gothic church in Czechia.

A museum of alchemy and a basement laboratory all housed in an ancient building in a Gothic tower.

This 1,300 year old monastery built atop a single rock was once only accessible depending on the whims of the tide.

Holy Grotto of Montserrat Monastery holds one of Europe's mysterious black Madonnas.

"Medieval" castle built in the mid-20th century by one family.

This quiet, unassuming spot in Budapest was the birthplace of the bloody 1956 Hungarian Revolution.

Time stands still at this serene burial ground in the center of Budapest.

An industrial site turned into Hungary's most cherished natural wonder.

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

A museum dedicated to a secret military hospital hidden beneath a castle in Budapest.

This hidden art nouveau gem was designed by an architect in search of a national style.

The abandoned "Red Star Train Graveyard" is the final rusting place for precious artifacts of train history.

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

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

Museum dedicated to the terror regimes of Hungary.

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

Possibly the world's largest hourglass only needs to be reset every New Year's Eve.

Legions of Roman soldiers bathed in this ancient spa complex under a Budapest transit station.

Budapest's Communist-era statues, banished to the suburbs.

A marvel of technology a century ago, this disused power station now offers a lovely glimpse into the industrial design of the past.

World's tallest cigar-shaped radio tower.

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

Late at night, the bust of the "Dracula" actor was snuck onto the facade of this Budapest castle.

This quaint Hungarian railway system is operated exclusively by children between the ages of 10 and 14.