A massive volcanic plug is now a protected area that hosts a number of bird species.

The world's first motel is now an administrative building for an apple farm.

One of the last surviving buildings of a once large and thriving Chinatown.

A Mysterious Masonic tomb in San Luis Obispo.

A hotel and restaurant serving as the mecca of kitsch.

An alley covered with 20 years of bubble gum.

A shockingly detailed small scale recreation of the temples of Abu Simbel.

The severed head of a 17th-century Irish martyr lies within an intricate golden shrine.

These murals stand as reminders to the troubled history of this Northern Ireland city.

What happens when you cross a mayor and a painter?

An Albanian monument to the Communism that nearly crushed the country is now a crumbling wreck.

Southern Italy's spinning top village.

It's believed that these columns marked the end of the Via Appia.

The ruins of this medieval castle in Northern Ireland have inspired artists from C.S. Lewis to Led Zeppelin.

Pilgrimage site for star-crossed lovers.

A gorgeous example of 13th-century Gothic architecture.

This medieval castle was reconstructed by Carlo Scarpa.

Europe’s oldest natural human mummy.

Two stone columns flank the grand Venice square, but there were supposed to be three.

Go inside to really appreciate this 500-year-old technological masterpiece.

This Roman statue is missing a limb from when the Venetians stole it from Constantinople during the Crusades.

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

Liechtenstein's royal family calls this medieval alpine castle home.

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