The city is full of whimsical portals to another world.

This historic lighthouse was well known for the large number of women who served as its keeper.

The last masonry skyscraper ever built reveals a transitional moment in architectural history.

A focal point of in Denver’s skyline for over a century, inspired by a Venetian basilica.

The last remaining 19th-century tenement from Boston's old West End neighborhood.

The poet’s boyhood home is now dedicated to celebrating his life and legacy.

This ruined quarry once produced the distinctive red sandstone used for construction projects in Washington, D.C.

Alexander Hamilton’s creation caused quite a bit of controversy.

This small Key West museum is packed with dozens of artifacts that illustrate the life of the iconic playwright.

History is on display in this hall, which has served as the seat of city government for centuries.

The highway's southernmost spot is a beloved local attraction.

This pseudo-steampunk weapons facility is the world's largest wood and glue structure, and packs quite a wallop.

This innocuous New Mexico storefront was once the secret jump-off spot for Manhattan Project scientists.

Wedding chapel's mysterious spiral staircase said to be miraculously constructed.

This southwest-styled home in Santa Fe claims to be the oldest house in America thanks to an ancient bit of foundation.

An immersive environment that is part haunted house, part choose-your-own-adventure, and part jungle gym.

A natural formation that resembles a camel resting in the New Mexico desert.

The shattered remnants of a meteor that struck Santa Fe more than a billion years ago.

A sprawling collection of over 106,000 toys from around the world.

This high desert botanical garden is a unique display of New Mexico’s ecology and culture.

A famous flea market artist's studio that's full of odds and ends.

"I did this all while you were watching TV."

This sparsely populated town offers a look back in time.

Giant origami sculptures tucked into desert scenery beckon passers-by to explore further.