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

This tiny museum's sizable collection is jammed into a former underground public toilet.

Iceland's "Smoky Valley" is a beautiful river that is shrouded in a constant cover of steam clouds.

This eye-popping Icelandic crater lake is surrounded by red volcanic rock.

Staves, storm-calling, and of course, necropants.

Norway's oldest cathedral still in use.

A Viking-style brewpub named for a Norse sea giant, in the heart of fjord country.

An artist's mausoleum with a haunting echo.

Walk behind a 50-meter-high waterfall.

The burning of this 12th-century church kicked off a campaign of Norwegian Black Metal terror.

The convergence of two currents makes this a surprisingly pleasant getaway in the Arctic Circle.

An intricately carved Viking church overlooks a glistening fjord.

The vintage, artistic cage of the city’s first lift welcomes visitors to an old heritage building.

Said to be the largest synagogue built in India.

Every year, massive crowds flock to this 300-year-old temple to celebrate a unique, goddess-centric Hindu festival.

This cupola was once seen as an architectural disaster.

A complex of ancient Buddhist rock-cut caves with a large, well preserved prayer hall.

The first English fort built in India.

A 19th-century church in South Mumbai built to commemorate those who died in the First Anglo-Afghan War and the retreat from Kabul in 1842.

Locals say the water level in this 1,200-year-old tank never goes down.

Also known as the "Red Taj Mahal."

The only Chinese temple in Mumbai.

Eternal flame said to be a Hindu Goddesses fiery tounge.

This bright pink Gandhi memorial was built so that sunshine hits a specific spot on his birthday.