A mysterious set of tunnels carved in the hills of rural northern Kyushu.

This historic hydroelectric power plant in Japan has been preserved and is open to the public.

A small island with no monkeys but plenty of military ruins.

Thirty architectural gems from the 19th- and early 20th-century Tokyo were restored and relocated to this space.

Once a black market electronics marketplace, now an otaku shopper's paradise.

Japanese national treasure originally built in 593 CE.

Experience park where visitors are told to expect the unexpected.

This subterranean spot might be the epitome of Japan's baroque, retro coffee houses.

A working ranch doubles as a sustainable hub for world-renowned classical music and large-scale sculptures.

Bad farming practices caused this unnatural natural wonder.

This mysterious twin turboprop Grumman G-159 covered in graffiti has spent a decade and a half abandoned.

Journey through a bit of nostalgia inside this classic record and video store.

The inspiration for H.P. Lovecraft's horror stories and Batman's Arkham Asylum is now a condominium complex.

This ordinary set of steps is a must-see destination for fans of a certain romantic anime.

Like a kitschy mirage in the Mojave, this eatery serves up classic 50s-style diner meals and a dinosaur sculpture garden.

The only thing sweeter than the potatoes is the canine proprietor of this roadside stall.

Who said a biker bar is no place for a taxidermy squirrel collection?

They call this long foot bridge a swinging bridge, but really it's the bouncing you have to watch out for.

Ruins of a Carnegie family mansion on Cumberland Island.

Crumbling ruins mark the site of a couple's grisly murder in the woods.

Journey through vintage Americana inside this small Massachusetts shop.

You can walk up Thailand’s naturally non-slip waterfall.

This foreboding medieval castle was twice besieged by barons rebelling against the English king.

See how paper is made the old-fashioned way.