The tech giant built three enormous glass orbs in Seattle so employees could work inside a rainforest greenhouse.

California's oldest existing theater building hosted an impressive cast of celebrities, including hosting Mark Twain's first lecture.

This fully intact Neoclassical-Greek Revival style firehouse operated until 1938.

A watering hole where the options for seating include a bar, patio, or subterranean cave.

A fine mixture of the old and the new topped with an art deco neon spire.

From a neon Rapunzel to a bike traffic meter to a street fair color scheme, the most opened drawbridge in the US is a veritable art gallery.

Granting the right of way to ships over surface traffic since 1917.

An eclectic restaurant serving from and to the nearby Chittenden Locks.

A young botanist's horticultural vision realized through a lifetime of planting, tending, and collecting seeds.

Allowing humans and fish alike to migrate from freshwater to saltwater and back again.

An abandoned network of military bunkers and tunnels open for anyone willing to descend into the darkness.

The building features one of the last remaining free-floating spiral grand staircases in the U.S.

City Council meetings still happen in this historic building, impeccably preserved on the inside.

From overly ambitious (and eventually abandoned) atomic dream to bustling office park.

The alley connecting two of country music’s most historic venues has a rich history of its own.

This replica of the Greek structure is in the heart of Nashville.

One of the few brewers in the U.S. experimenting with hop-free beers.

Memorial of the Salem witchcraft hysteria in the town of Danvers, where it all began.

The 340-year-old house that inspired the classic Nathaniel Hawthorne novel.

Like stepping into a spooky fairy-tale, this shop carries the dark ideas of artists and other makers.

The headquarters in Salem doubles as an occult art gallery.

Statue in Salem of the woman who starred as the witch Samantha in the sitcom "Bewitched."

The only structure left with direct ties to the Salem witchcraft trials of 1692.

A former waterfront market is now in the center of town due to some interesting Boston engineering.