The now-abandoned tunnels were built for the transcontinental railroad on the route where the first wagon train entered California.

Offering commanding views of the California coastline, this restaurant was a hub for the artists and bohemians of Big Sur.

Over two centuries old and counting, Madrid's massive botanical garden contains one of Europe's only desert environments.

Isolated atop this Balinese sea crag is a lovely Hindu temple that is said to be guarded by sea snakes.

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

Hindu temple of the dead home to hundreds of long-tailed macaques.