This Niagara Falls tourist trap is a world bright with neon and curiosities that will inspire love, hate, or a mixture of both.

Soaring over the Niagara Whirlpool since 1916.

This elegant arc of a waterfall marks a religious turning point.

The picturesque birthplace of Icelandic democracy is drenched in the blood of its brutal past.

A particularly creepy abandoned hospital that sparks interest for lovers of the supernatural.

Staircase winds down the side of Telegraph Hill through gardens, wild parrots flying overhead.

A collection of 20th-century automata, penny arcade games, and musical contraptions.

This public square capitalized on a single Eagles reference to bring some life back to an Arizona town.

A small metropolis of Pueblo cave dwellings have been carved right into the hillside of this national monument.

These Pre-Columbian petroglyphs contain representations of birds, deer, hunters, and even some early Native flute players.

Controversial tribute to the heavyweight champion boxer who grew up in Detroit.

The world's tallest doric column is this Ohio monument to a naval victory in the War of 1812.

The drama of nature in full effect in this Nevada State Park.

The wild west is still alive and well at this authentic mining town watering hole.

Dyed by iron oxide over centuries, these sandstone rocks rise thousands of feet into the sky.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

Beyond the usual stories that attend old prisons, this one has deep bloody undercurrents.

World's first "penitentiary," meant to be humane, drove men insane.

A large grotto built in the 16th century amidst Florence's famous Boboli gardens.

One of Antoni Gaudí's most classic buildings is well-known for its "dragon-back" design.

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

Mountain where Jesus was first tempted by the Devil.

Two very green residential towers cleaning the air in one of Europe's most polluted cities.

A statue in the center of Dublin dedicated to one of their favorite sons of rock & roll.