This eccentrically decorated palace is replete with grottoes, fountains, tunnels, and caves.

This once-abandoned mansion is now a dreamy event space.

Psychedelic murals coat the inside of a nondescript research library.

The secret room where early Bolsheviks cranked out propaganda fliers on a smuggled printing press.

This ancient burial site is believed to be one of the first earthquake-protected structures in the world.

The cathedral stands in New Jufa, Isfahan's Armenian quarter that was established in 1606.

A fantastical group of cliffside stairways, bridges, and twisting paths carved out of stone provide a surreal coastal hike.

This enchanting rainforest hotel looks as though it grew from the forest itself.

The world's first cruise ship-shaped hotel is perched atop a cliff.

Plenty of old carney magic still haunts this photogenic amusement park.

A monumental underground karstic wonderland is also the water source for over a million citizens of Beirut.

Plundered and left asunder by grave robbers, this ancient necropolis has been painstakingly pieced back together.

The intricate stonework of Machu Picchu serves as a testament to Incan engineers.

A market for witches is hidden within a train station.

Still standing despite its considerable slant, this tilted lighthouse has become a local symbol of resilience.

These colonial murals are a fascinating hybrid of Spanish and Indigenous aesthetics.

Inside this mountain lies several kilometers of breathtaking caves.

These biodiverse university gardens form a green oasis amid the urban chaos of Mexico City.

The ruins of an ancient Mayan city, beautifully preserved and only accessible by boat.

The jewel of western Mexico's archaeological legacy is this tiered circular pyramid now covered in grass.

At a museum of everyday objects, it is the act of collecting that is really on display.

A scientific repository of goiters, boils and other ailments throughout Mexican history.

Mexico's astounding mummy museum with "the world's smallest mummy."

Twelve natural mummies are displayed in the crypt of this former monastery school.