Ancient snack bar of the Roman Empire re-opened.

The last moments of the ill-fated Pompeiians, frozen forever in plaster.

This semi-hidden Manhattan restaurant is based out of a loading dock.

This opulent hotel has been visited by Spider-Man, Charlie's Angels, and the Ghostbusters.

Named after a bandit and the star of several Hollywood prehistoric landscapes, these sandstone formations are a historical part of the Los Angeles natural landscape.

Each year these high desert hills are absolutely covered with poppy flowers in a surreal show of nature.

Megachurch turned Catholic church comprised of 10,000 glass panes.

Oldest building in California still in use.

The site of murders and Satanic cult gatherings.

A 19th-century artistocrat's mansion, turned into a library, hidden in a modern library.

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.

From Austrians to Nazis to Soviets, this historic Budapest fortress has a history as complex as the city itself.

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

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

Once the home of a hermetic monk, this cave now houses a small church.

The United States’s oldest funicular railway glides up and down a steep Pittsburgh street.

A restored Pittsburgh house of God has been converted to a marvelous house of suds.

Found art has transformed this Pittsburgh neighborhood into a psychedelic dream.

This church in Pittsburgh is home to the largest collection of religious relics in North America.

Hundreds of protractors affixed to surfaces all over the city.

Meet your friends, marry your true love, or tell your enemies to kiss your butt under this historic Pittsburgh timepiece.