One of the largest Buddhist stupas in the world keeps an eye out in every direction.

This ancient Roman bridge and aqueduct still stands as a wonder of classical construction.

This underground church is topped with a 500-foot cross that is seen by many as a beacon of fascist hubris.

This permanent exhibition celebrates the finest of our heartless automatons both real and fictional.

Hidden in a secluded Greek cove is a pristine beach marred only by the rusting smuggler's hulk stranded on its shores.

Sitting on an Italian hilltop is this surreal fortress built by the mad inventor of electrohomeopathy.

Opulence and fantasy collide in this royal chair which is supposedly made with unicorn horns.

A miniature rainforest is growing inside of a Midtown Manhattan office building.

It's always summer at the beach inside this former airship hangar.

This former Masonic lodge has been transformed into part museum, part bar, all awesome.

More than half of this Indian palace is drowned but it looks all the more spectacular for it.

This bright yellow relic is the final survivor of a short burst of seashell-shaped petrol pumps.

Try not to get lost in this picturesque Brazilian labyrinth of the dead.

Mirrors and glass shards cover every inch of this arrestingly beautiful mosque.

Paranormal experiences in this hotel's room 217 led Stephen King to write "The Shining."

Two stunning 17th-century libraries and a cabinet of curiosities.

Repurposed space and ultra-modern construction collide to create this geometric wooden spectacle.

A giant scale model giving a sneak peek at what urban planners see for Shanghai by 2020.

Filled with goldfish swimming in a shallow pool of sea water, this ancient crypt is more wishing well than burial site.

A trading post in the North Pole where children send letters.

A part of the world's largest marsh seems to be growing bright red Martian grass.

Austria's very first and only nuclear power station was completed but never used.

The alpine falls where Sherlock Holmes apparently met his demise can actually be visited.

The world's first and only escalator for lazy bicycles and their daunted riders.