Longest road tunnel in the world features an air treatment plant and the illusion of daylight.

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

Stay overnight in the world's most sleekly designed rabbit hole, free of charge.

St George's Leprosy Museum depicts the gruesome afflictions of those suffering from the disease.

A favorite with sightseers, this Norwegian funicular provides easy access to a stunning view of Bergen and its environs.

An old hill fort covered in over 100,000 crosses is a symbol of Lithuanian nationalism and beliefs.

A 15-foot-tall statue of the head of the Sopranos family greets passengers at a train station in southeastern Lithuania.

A 300-kilogram egg sculpture that embodied a neighborhood revival.

Legend has it that Napoleon Bonaparte fell in love with this Gothic church.

This micro-nation may be some sort of prank, but its constitution sure seems official.

The Frank Zappa fan club erected this monument to their prog-rock hero to mark a new era of post-Soviet Lithuania.

Over time, this castle grew to encompass the entire island.

Hundreds of Buddhas in a re-discovered Indonesian temple.

Subterranean place of worship in Indonesia.

This massive complex is made up of hundreds of smaller temples that date back to the ninth century.

Site of the largest volcanic eruption in the last 25 million years, one which may have nearly wiped out humanity altogether.

Built by the Portuguese colonists in the early 16th century, this fort is one of the oldest European structure in Asia.

One of the world's tallest flagpoles.

Holy Hindu shrine in an enormous, monkey-filled limestone cavern.

The oldest Jewish cemetery in Southeast Asia is a monument to a disappearing community.

Central America's deepest lake is actually a volcanic caldera, surrounded by three volcanoes.

Monkeys inhabit the lush forest surrounding ancient Mayan ruins once considered sacred.

These roaring primates were considered a divine creature in the cosmology of the Maya.

Deep in the Guatemalan jungle stands an ancient pyramid that once marked the reign of a king.