This subterranean funicular is one of the world's smallest subways.

Squeezing inside this deep, narrow canyon reveals a festival of desert colors.

The home of the Dead Sea Scrolls is an abstract modernist dream.

This daunting 1st century fortress was purportedly the site of one of the most dramatic revolts of the Jewish-Roman wars.

This tree was grafted from the actual tree that led Isaac Newton to ponder the theory of gravity.

The Cambridge pub where Francis Crick announced that he and James Watson had discovered the DNA double-helix.

Local legend says Isaac Newton built this footbridge without any screws, bolts, or nails.

These small sculptures pay homage to the lovable star of an iconic Argentine comic strip.

Buenos Aires' city of the dead contains some very famous remains, including Eva Perón.

This historic, palatial theater is now one of the world’s most beautiful bookstores.

Built for the 1962 World Cup, this fully functioning botanical clock is still ticking.

Pivotal home of Nobel Prize winner Pablo Neruda.

This museum covers 10,000 years of Pre-Columbian Latin American history.

Eat the ultimate iteration of Portugal's most beloved pastry.

Elaborately carved to showcase the glorious wealth that the age of exploration brought to the Portuguese empire.

One of the most beautiful bookstores in the world hides a neo-Gothic interior behind an art nouveau facade.

Construction of Barcelona’s iconic (but controversial) church was finally completed in 2026—a century after the death of its architect.

A book collector's dream, this Toronto bookstore has the world's first "Biblio-Mat," a random book vending machine.

This ancient Roman aqueduct once funneled water to Diocletian's palace.

A World War II evacuation tunnel turned into a history display of Croatian state and people.

The big toe of this towering monument to a Croatian national hero is worn from years of superstitious rubbing.

Where the lovelorn find a home for their sentimental keepsakes.

A fire once nearly devoured this gorgeous 14th-century Gothic cathedral.

This snug medieval lane is one of the narrowest streets in the world.