Sprawled across the Great Hall ceiling are various constellations and images relating to the zodiac.

Come for the oysters, stay for the priceless art honoring inventors across history and Scotland's favorite outdoor sports.

This series of Scottish caves has no clear purpose other than baffling historians.

This amazing example of Valencian Art Nouveau looks more like a cathedral than a public market.

Rare karst landscape eroded from a flat seabed.

A curious carving hides on a marble column in the Mosque-Cathedral of Córdoba.

Spain's unique Mosque-Cathedral has been a place of worship for both Muslims and Christians throughout its history.

This unusual lava tube spouts seawater during high surf.

This museum of Hawaiian and Polynesian culture is the legacy of the last descendant of the Kamehameha Dynasty.

An authentic replica of an Asian temple and garden hidden amongst the natural beauty of Hawai'i.

These ancient sacred grounds granted amnesty to those who managed to reach them.

Hide from the tourist hordes in these relatively unknown, and unguarded lava caves.

These picturesque Hawaiian falls are home to a rare species of fish that uses a special sucker to climb up cliffs.

This black shoreline is made up of exploded lava particles.

This grisly effigy displays an early Christian martyr who was skinned alive and beheaded.

This poignant art installation raises awareness of violence against women.

An ossuary built in 1210 to collect bones from the Ospedale Maggiore of Milan.

As can be expected from a centuries old church built in a canal city, the undercroft of this house of worship is beautifully flooded.

This Venice bookstore has resigned itself to constant flooding by keeping its books in bathtubs and boats.

This Canadian monument to the man who invented the telephone allows visitors to get up close and personal with the artifacts of his life.

This World War II-era bunker is now packed with posters and props from movies and TV shows filmed nearby.

A unique set of caves that spits waves back out into the ocean.

The most loyal of little dogs, or a Victorian era publicity stunt?

Protecting the dead from opportunistic body snatchers.