The world's largest collection of mechanical puzzles is a cornucopia of analog bafflers.

This whimsical park encourages its visitors and wildlife to roam on and around the various works of art.

This elaborate estate contains a stunning marble aviary, a sunken conservatory, and a magnificent music room with a two-story pipe organ.

This former office building has been transformed into an immersive music venue and art space.

Ruined pieces of stone and a swimming pool are all that remain of an amusement park swept away by a flood.

A turn-of-the-century architectural marvel built on healing mineral springs and salt licks.

Symbolic attempt to overcome the issues of life.

A hidden network of subterranean passageways lies tangled beneath Indianapolis' bustling City Market.