The interior of this Serbian royal family's mausoleum is covered with exquisite mosaics.

Structure built from the skulls of vanquished foes.

This is the oldest Roman-made bridge in the city still existing in its original state.

Installed in an act of one-upsmanship, the annual sundial in this church is also a symbolic victory for the Gregorian calendar.

The crypts of Capuchin friars decorated with the bones of over 4,000 friars, including an entire "crypt of pelvises."

This strange statue depicts a young boy's body with an adult Mozart's head and a single wing.

This hanging crocodile is thought to be the "dragon" that once plagued a Czech city.

A peculiar clock commemorates a historic victory won by ringing the noonday bell an hour early.

A cheeky architectural easter egg.

Mummified monks and the accidentally interred, in a 17th-century crypt.

Be(w)ar(e) the moat around this historic Czech castle.

This village in Bohemian Switzerland hosts more than 300 wood carvings inspired by fairytales, folklore, and other oddities, as well as a series of Communist-era tanks

This Gothic church was wheeled in its entirety to a new location a half a mile away.

An enormous and lavish Gothic church in Czechia.

Folklore says this medieval fortress was plopped atop a portal to hell to trap the demons below.

The soulless eyes of 82 bronze children stare on forever in remembrance of a horrifying World War II massacre.

An old asylum graveyard that's been abandoned for half a century attracts those seeking a dark thrill.

Walk through Czech history in Prague's largest graveyard.

A former squatter's paradise outside Prague.

This artificial cave looks like something out of a fairytale.

Steadily reminding Czechia of its past.

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

Tucked away in a Prague park, a statue beloved by romantics honors a poet so nice they buried him twice.

Bullet holes in the church wall are a reminder of the violence that followed the assassination of a high-ranking Nazi officer.