A museum of alchemy and a basement laboratory all housed in an ancient building in a Gothic tower.

A church of bones, decorated with 40,000 human skeletons.

Revolutionary War casualties fill the only 17th century structure remaining in Manhattan.

Avoid gangster interaction while window-shopping.

Order scoops of pandan, lychee, and black sesame at this family-run institution.

During the 19th century, you could pay for violence off a prix fixe menu on this Manhattan street.

This skewed English house has looked like it's going to fall over for centuries.

A medieval village holds a very modern hotel.

A unique opportunity to stay the night in retrofitted sections of sewer pipe.

From dragonfruit to mangoes to durian this Thailand resort allows guests to stay inside all manner of giant fruit.

The world's first ice hotel is still one of the most elaborate and beautiful.

A Korean rock bassist's wild dream has become a reality at this completely insane boutique hotel.

This lovely, if imposing, piece of Canadian gothic is possibly the most photographed hotel in the world.

This chilly Canadian hotel has a four-month lifespan due to the unusual material it's made of.

One man's fifteen-year diversion lead to a garden of intriguing sculptures.

The largest underground church in Europe.

This French "sea of rocks" is packed with stunning rock formations and its own medieval castle.

This natural rock formation features seemingly unnatural vertical ridges that have been blamed on elves.

A sulfuric martian landscape that looks far better than it smells.

This tumultuous Icelandic lava field looks so alien European researchers want to use it as a stand-in for Mars.

This volcanic cave lake is essentially hard proof that Iceland is the most magical place on Earth.

These ominous lava formations were said to be an entrance to the netherworld so of course they inspired a famous metal band.

This popular pilgrimage site offers a hole filled with holy healing dirt.

This Irish show cave is said to have been the site of a Viking massacre that claimed 1,000 lives.