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

The oldest Italian café in Boston, this spot also serves as a veritable museum of vintage coffee ephemera.

Gaudí's famously flamboyant architectural style is on full display in this sprawling park and garden.

A colorful architectural gem in Seattle's uniquely modern Central Library.

See massive fossils that are over 200 million years old in northeastern Arizona.

Giant, natural amphitheaters made of delicate geological formations called "hoodoos."

Strange red rock formations that have been attributed to a higher power for hundreds of years.

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

Quite simply the largest tree in the world (by volume).

This 700-year-old street food market features baby octopus and soy donuts.

A swing to dangle you off the very edge.

San Francisco's newly reopened hands-on science museum.

A hotel and restaurant serving as the mecca of kitsch.

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

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

The ancient dwellings of the Puebloans, located in the cliffs of majestic mesas.

The rocks in this arid basin leave trails of movement behind them.

A roaring, awe-inspiring double cascade of icy water flows through woodland Oregon like something out of a Tolkien novel.

An enormous, inside-out glass globe built in 1935.

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

The fairy tale castle of the "fairy-tale king."

The sound of swaying stalks in this stunning grove has been named a governmentally recognized sound.

A magical place that lets you play in and explore the world of Studio Ghibli.

High on a hill overlooking Los Angeles lives a world famous, high power conical Tesla Coil.