A Hungarian pharmacy museum with a box full of mummy powder.

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

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

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

Museum dedicated to the terror regimes of Hungary.

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

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

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

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

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

A colorful "forest" made entirely from three tons of recycled plastic waste.

The former Mexican president kept the bullets that killed his predecessor on display in his home, now a museum.

Its incredible collections are dedicated to preserving Mexico's film history.

This laboratory has a remarkable concrete roof that measures less than an inch at its thickest point.

Mexico's National Sound Library houses music, recordings, and voices from the nation's rich past.

This piece of a Renaissance-era Spanish castle remained lost for decades.

A tribute to the 20th-century ball that cast a spotlight on Mexico’s LGBTQ community.

These subterranean models show Mexico City's central square during three different eras.

A Mexico City subway station boasts a hidden museum, complete with a working radio booth.

The museum houses "the most studied meteorite in history," among other geological oddities.

A "time traveler's" vision of human history stretches throughout Mexico City's Copilco metro station.

Get a close look at the gigantic remains of long-extinct mammoths.

Mexico City decorates its facades with extravagant floral arrangements every year.

A close look at the church's walls reveals pieces of Mexico's history.